Two years later, as part of a plea deal, he admitted responsibility in five other murders committed in Missouri, for which he received multiple life sentences without possibility of parole.

[3] Robinson enrolled at Quigley Preparatory Seminary in Chicago, a private boys school for aspiring priests, but dropped out after one year due to disciplinary issues.

In 1964, he moved to Kansas City and married Nancy Jo Lynch, who gave birth to their first child, John Jr., in 1965, followed by daughter Kimberly in 1967, and twins Christopher and Christine in 1971.

In 1969, Robinson was arrested in Kansas City for embezzling $33,000 from the medical practice of Dr. Wallace Graham, where he worked as a radiographer using forged credentials.

He was arrested in June 2000 at his farm near La Cygne, Kansas, after a woman filed a sexual battery complaint against him and another charged him with stealing her sex toys.

On the farm, a task force found the decaying bodies of two women, later identified as Lewicka and Trouten, in two 85-pound (39 kg) chemical drums.

He received a 5-to-20-year prison sentence for interfering with the parental custody of Stasi's baby, 20 years for kidnapping Trouten, and seven months for theft.

[9] Chris Koster, the Missouri prosecutor, insisted as a condition of any plea bargain that Robinson lead authorities to the bodies of Stasi, Godfrey, and Clampitt.

Robinson, on the other hand, faced pressure to plead guilty to avoid an almost certain death sentence in Missouri, and failing that, yet another capital murder trial back in Kansas.

In a carefully scripted plea in October 2003, Robinson acknowledged that Koster had enough evidence to convict him of capital murder for the deaths of Godfrey, Clampitt, Bonner, and the Faiths.

[10] The following year, Stasi's daughter—known since her faked adoption as Heather Robinson—filed a civil suit against Truman Medical Center in Kansas City and social worker Karen Gaddis.

[13][14] Robinson's criminal activities were also profiled on episodes of the A&E series Cold Case Files,[1] Investigation Discovery's FBI: Criminal Pursuit, Very Scary People, Sins & Secrets, Vanity Fair Confidential, It Takes a Killer, and Deadly Doctors, as well as Forensic Files, and The New Detectives on the Discovery Channel.