When a Phoenix, Arizona couple is murdered in their own home, responding officers consider it one of the cruelest crimes they’ve ever investigated. Investigators search for the killer or killers of two beloved grandparents who’d devoted their lives to helping others in this episode of Last Seen Alive.
William and Barbara Singer were 81 and 64-years-old, respectively, when they were killed in their north Phoenix, Arizona home in late June of 2014. Image source: family photo.During the last year of his life, William experienced age-related health problems. At the time of his and Barbara’s murders, he had recently been released from the hospital and was experiencing mobility issues. Image source: family photo.Pictured: Barbara withdrawing cash from an ATM on the night of June 28th. William had made a withdrawal from the ATM 15 minutes prior. Investigators believe the Singers were made to make the withdrawals, and were then taken back to their home and killed. Image source: ATM footage still.Barbara and William shared a passion for travel. Prior to their murders, they’d been looking forward to William becoming well enough for them to take their dream trip to the Panama Canal. Here, William is seen holding a sea turtle during one of their trips together. Image source: family photo.Barbara and William had been married for nearly 40 years at the time of their murders. Those who knew them described them as inseparable, and meant for each other. They spent the majority of their lives caring for others in need–Barbara as a pediatric nurse practitioner who treated abused children, and William as a medevac pilot and EMT and CPR instructor. They made tremendous impacts on the lives of many in need, and are badly missed by family, friends and co-workers. Image source: family photo.
If you know anything about the deaths of Barbara and William Singer, please contact the Phoenix Police directly at 602-262-6151, or—if you wish to remain anonymous—call the Silent Witness tipline at 480-948-6377.
If your tip leads to the identification of the Singers’ killer or killers, you may be eligible for a cash reward of up to $5,000.
When an Iowa woman lists some furniture she no longer needs for sale, a calculating killer responds to her ad. All leads are exhausted by frustrated investigators and a case goes cold in this episode of Last Seen Alive.
Patricia Jauron was 45-years-old when she was murdered in 1999. She was a respected member of the Woodbury County, Iowa community and had enjoyed a long career with the local school district. Image source: family photo.As described by this Des Moines Register article, investigators from the Woodbury County Sheriff’s Office sought outside investigative expertise from the FBI. Even so, her case remains unsolved. Image source: The Des Moines Register.
When a woman vanishes from her Las Vegas home, investigators find themselves working to solve a carefully-planned abduction and murder. A killer remains at large despite leaving DNA evidence behind in this episode of Last Seen Alive.
Theresa Insana was 26-years-old when she was murdered in October of 2004. Here, she’s pictured with her beloved cocker spaniel, Frankie. Image source: family photo.This map shows the locations of Theresa’s home (the crime scene), the location where her body was abandoned (a culvert) and her previous home. Investigators believe her killer was familiar with the area, and either knew Theresa well or stalked her. Image source: Google Maps.Theresa worked for the Rio Hotel & Casino as a sales manager. She was ambitious, successful and enjoyed her work. Image source: family photo.This composite “snapshot” profile from Parabon Labs depicts Theresa’s killer based on analysis of his DNA. He’s shown at the approximate age of 40, but may be older than that now. Image source: Parabon Labs. Theresa came from a loving family, and was very close with them, even after she moved from New York to Las Vegas. Her death devastated her loved ones. Here, Theresa (left) is pictured with her dad and younger sister. Her dad passed away in 2021 without ever receiving answers regarding her murder. Image source: family photo.
If you know anything about the death of Theresa Insana, please call the LVMPD Homicide Section at (702) 828-3521, or e-mail them at homicide@lvmpd.com. If you wish to remain anonymous, you can call Crime Stoppers of Nevada at 702-385-5555.
When a New York woman doesn’t return home from a routine errand, her husband endures a sleepless night of worry before being called to the medical examiner’s office to identify her body. A case gone cold receives new scrutiny when a notorious serial killer is identified in this episode of Last Seen Alive.
Su-Ya Kim and her husband, Su-Young Kim, moved to NYC shortly after marrying in Seoul. They aspired to become business owners, and succeeded. Prior to Su-Ya’s death, they owned and ran two popular clothing stores together. Image source: family photo.Su-Ya was the loving mother of two young sons. Her murderer deprived them of her when they were still small children. Image source: family photo.Su-Ya and Su-Young worked hard to build a life together, running their own business and raising a family. Su-Young was devastated by her death. Nearly two years afterward, he moved back to South Korea with their children, unable to bear life in the US without her. Image source: family photo.This map shows the distance between the approximate locations where Su-Ya lived in Queens, and where her body was found in Brooklyn’s Bedford-Stuyvesant neighborhood.. Image source: Google Maps.This sketch depicts Su-Ya’s killer, as described by the security guard who interacted with him. Image source: police photo.
If you know anything about the murder of Su-Ya Kim, please contact the NYPD Crime Stoppers Tip Line at 1-800-577-8477, or report an online tip HERE. You may remain anonymous if you wish.
When a 13-year-old Wisconsin boy vanishes in the summer of 2023, investigators learn that he had aspirations of trying to survive “off-grid” in the wilderness. Despite the discovery of abandoned campsites and extensive search efforts, a child remains missing in this episode of Last Seen Alive.
James Yoblonski was 13-years-old when he went missing from Reedsburg, Wisconsin in June of 2023. Image source: family photo.Here, James is pictured leaving his home alone, late at night with luggage. Image source: home security camera still.On the night of his disappearance, James loaded his luggage into the family van and sat in the vehicle for an hour before driving away. Image source: home security camera still.The morning after James’ disappearance, the van he left home in was discovered abandoned alongside Route 12. Image source: police image.This photo shows a bag left behind at one of the makeshift campsites police were able to locate in the woods near where the abandoned van was found. Image source: police image.James loved camping and fishing, and had an interest in outdoor survivalism. His whereabouts have been unknown since June of 2023, and he is badly missed by his family. Image source: family photo.
If you have any information on the disappearance or whereabouts of James Yoblonski, please call the Sauk County Sheriff’s Office at 608-355-4495, or Sauk County Crime Stoppers at 888-847-7285.
When a housefire erupts in a quiet Florida neighborhood, first responders find a mother and her young daughter deceased inside the home. Investigators search for the killer who set the fire in an attempt to destroy evidence of a double-homicide in this episode of Last Seen Alive.
Kira and Heather Radcliffe were 6 and 28-years-old, respectively, when they were murdered in their Gainesville, Florida home. They were mother and daughter. Image source: family photo.Here Kira is pictured with one of her favorite creatures: a butterfly. Those who knew and loved her say she was a social butterfly who brought joy to others’ lives. Image source: family photo.Pictured: the empty lot where Heather and Kira’s house once stood, before burning down. A new home has since been built on the lot. Image source: Google Maps.Pictured: a summary Heather and Kira’s case and request for information from the Gainesville Police Department.Pictured: a summary of Treva Gernannt and Emily Wallace’s case and request for information from the Gainesville Police Department. Treva and Emily were another mother-daughter pair who were murdered inside their own home–which was then set on fire–in Gainesville. Pictured: an FBI ViCAP Alert bulletin featuring Heather and Kira’s case. The FBI is seeking information in conjunction with the Gainesville Police Department.Heather was a loving mom who worked hard to provide for her daughter, Kira. They are both badly missed by their friends and family. Image source: family photo.
If you know anything about the deaths of Heather and Kira Radcliffe—or about the death of Wende Ellinger, or the deaths of Treva Gernannt and Emily Wallace—please call the Gainesville Police Department at 352-393-7500.
When the remains of a young woman are found in an Iowa ditch, it takes decades for them to be identified. Determined to solve her murder, investigators piece together the short and heartbreaking life of the victim in this episode of Last Seen Alive.
Pictured: Wilma Nissen with one of her infant children. Wilma gave birth to two sons and one daughter. Image source: family photo.Pictured: Wilma Nissen as a child. Wilma was badly neglected and abused in her early childhood, then entered the foster care system at age 10. Image source: family photo.A rope that investigators say was used to drag Wilma’s body was still tied around her ankles when her remains were discovered in an Iowa ditch. Image source: police photo.Wilma Nissen was 23-years-old when she was murdered somewhere in or near Lyon County, Iowa in 1978. Image source: family photo.This late-70s photo is of a woman who went by “Sugar”. Sugar was a sex worker in the Sioux Falls area, and investigators consider her a suspect in Wilma’s murder. If you know her, please contact the Lyon County Sheriff’s Office.
When a North Carolina woman is found dead in her home, investigators realize that what initially appeared to be a suicide is in fact a staged murder scene. A family waits for justice while a suspect inherits the victim’s estate in this episode of Last Seen Alive.
Sarah Long was 41-years-old when she was murdered in her Davidson, North Carolina home on July 18th, 2014. Image source: family phot.A suspect in Sarah’s case has been convicted of crimes against other women. Image source: The Charlotte Observer.
When a dedicated Indiana teacher misses class without warning, a search of her apartment leads to a grim discovery. The chilling murder of a mother, grandmother and favorite teacher becomes a cold case in this episode of Last Seen Alive.
Pictured: Bobbie Brown’s death certificate. She was a victim of homicide, and her murder remains unsolved.Bobbie Brown was 47-years-old when she was murdered in her Highland, Indiana home. Image source: family photo.Bobbie was a favorite teacher of many at the elementary school where she taught. One of her students published this tribute to her in a local paper following her murder.Pictured: an advertisement for the apartment complex where Bobbie was murdered just after moving in. It was a low-crime neighborhood, and her murder was a statistical anomaly.
When an elderly Washington man dies from a fall, no one suspects his in-home caretaker—until her involvement in several other deaths is discovered. Suspicion over his death is raised as the remains of murder victims are unearthed from a serial-killing couple’s backyard in this episode of Last Seen Alive.
Kathy Loreno was the Knoteks’ first known victim. She was a sweet, kind woman who worked as a professional hair stylist. The Knoteks ruined and eventually ended her life. Image source: family photo.Michelle Knotek (left) came into Kathy Loreno’s (right) life under the guise of friendship. Michelle and her husband, David, then abused and tortured her to death over the course of 6 years. Image source: family photo.The Knoteks’ second known victim was their own teenaged Nephew, Shane Watson. Shane attempted to document Kathy Loreno’s abuse, and was killed in retribution. Image source: family photo.Ron Woodworth was the Knoteks’ third known victim. Michelle Knotek entered his life under the guise of friendship. Michelle and her husband, David, then abused and tortured him to death. Image source: family photo.David Knotek (left) and Michelle Knotek (right) were a married couple. Together, they abused, tormented and ultimately killed multiple victims. Image source: family photo.Convicted murdered David Knotek was sentenced to less than 15 years in prison. He is now free and may be going by a different name. Image source: police photo.Pictured: convicted murderer Michelle Knotek in court. For her crimes, she was sentenced to 22 years’ imprisonment. She was released early in November of 2022 at the age of 68. Image source: Kevin Hong.Pictured: a modern photo of Michelle Knotek. She is currently free, and may be going by a different name. Image source: Washington DOC.When Kathy Loreno went missing, law enforcement was unhelpful. Her mom took out an ad in a local paper (pictured), and her brothers hired a private investigator. Years later, investigators discovered that Kathy had been murdered. She was the first of the three known victims of Michelle and David Knotek.
Note: unfortunately, we were unable to locate a photo of James McClintock.
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