Illinois man, 50, kills parents and himself after learning they wanted him out of their house

Ksenia Novikova
Jun 05, 2018
08:18 A.M.
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Karl Clinkenbeard was the son of Clyde and Nancy Clinkenbeard. He and his parents were found dead in their home last month in a murder-suicide.


The Chicago Tribune reported that the three were found dead in their family home on May 21, 2018. Police believed that Karl killed his parents and himself because they wanted him to move out of their house.

Karl, 50, had a long history of mental illness and drug abuse according to reports. He’s accused of attacking and killing his parents, Clyde, 76, and Nancy Clinkenbeard, 77, before taking his life in their Winfield home.

Karl and his parents were found dead with multiple injuries from a sharp-edged object. Police said the suspect’s motive was attained after he learned that his parents wanted him out of their Jefferson Street home.


The son carried out his attack sometime between noon and 1:15 p.m. on May 20. The gruesome discovery was made when a neighbor’s husband peered inside a window the next morning and discovered the bodies of two family members.

They’d become concerned about the family when they saw that their lights were on and the family dog had been left out. The parents had lived there for more than 30 years.

Court records showed that Karl had numerous run-ins with the law. He had a long history of misdemeanor convictions in DuPage County.

These included drug possession, driving under the influence, and domestic battery. He also had two felony convictions, one for a 1988 burglary and another in 1990 for possession of a weapon by a felon.


Karl began smoking marijuana at 14, drinking at 15, and by 17 he was consuming a case or more of beer a day. He’s also used cocaine, PCP, and other narcotics


In 1990, he was sentenced to 30 months probation, as well as two weeks in the Elgin Mental Health Center. His most recent conviction was a 2013 domestic battery charge for punching a male relative in the chin.


Karl has spent time in various mental health facilities, sometimes as a sentencing condition. In 1989, he was diagnosed as bipolar.

His condition was worsened by his heavy drug and alcohol use. Two years after being diagnosed, Karl was admitted to the now-closed Tinley Park Mental Health Center after a suicide attempt.

At the time he was prescribed antidepressants due to ‘situational problems.’ The man’s father was a retired school maintenance worker and his mother was a former school reading specialist, read more on our Twitter account @amomama_usa