Robert Spangler Serial Killer Documentary



Robert Spangler, a horrible serial killer who targeted members of his own family and managed to elude punishment for over 20 years. He lived in Littleton, Colorado, with his high school sweetheart, Nancy, whom he'd married 23 years before, and their two children in 1978.

He lured Nancy into the basement with the promise of a surprise before shooting her in the head on December 30, 1978. He then went upstairs and shot his two children, David, 17, and Susan, 15, who were both under the age of 15. When David didn't die right away, Spangler suffocated him with a pillow.



Spangler then staged the bodies to make it appear as if Nancy had killed the two teenagers before turning the gun on herself. He even fabricated a suicide note that he said Nancy had written. When the cops detected gunshot residue on his hands, they were suspicious, but he claimed that he had touched the gun when he discovered the victims.



Seven months later, Spangler remarried, but the couple separated in 1988. She died of a heroin overdose in 1994, but Spangler was never charged with her death, despite having reconnected with her around the same time.

Spangler married for the third time in 1990, to Donna Sundling, an aerobics instructor. He pushed Sundling off a 200-foot cliff while the two were on vacation at the Grand Canyon three years later. Spangler claimed he turned aside to fix his camera at the time, and when he returned, she had vanished.



Investigators had a nagging hunch that Spangler was involved in the fatalities as the years went. Officers learned in 2000 that Spangler had terminal cancer. They went to his house to see if he wanted to make any confessions before he died. He said, Yes!



Spangler confessed to pushing Donna Sundling to her death at the Grand Canyon. He later confessed to the murders of Nancy and his children. He was condemned to life in prison without the possibility of parole in 2001, but he died of his sickness only a few years later.