Chicago man said he was instructed by God to kill 70-year-old woman because she ‘was the devil’: prosecutors
CHICAGO - A Chicago man who suffers from mental illnesses said he was instructed by God to "get rid of" his 70-year-old neighbor because she "was the devil," Cook County prosecutors said Thursday.
Thomas Diskin has been accused of killing Dyan Nickerson, beating her with a marble column and hammer, prosecutors said. He also allegedly killed her bird, which he called "Satan," and cat, which he said was a human being reincarnated.
Diskin, 56, was charged with first-degree murder, home invasion causing great bodily harm and aggravated cruelty to animals, police said.
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Officers found Nickerson dead lying inside her first-floor apartment in the 6600 block of North Northwest Highway in Edison Park after a person called 911 when she failed to meet up to sell an item, Assistant State’s Attorney James Murphy said.
The person who phoned police had gone to Nickerson’s house and noticed her door had been "heavily damaged," Murphy said. Diskin stuck his head out of the window of his second-floor apartment and ordered the person to leave. She eventually called police after Diskin allegedly made admissions regarding Nickerson and threatened to kill her too, Murphy said.
Thomas Diskin | Chicago police
Diskin remained at the scene, prompting a 30-minute standoff with SWAT until he eventually surrendered and was taken into custody. He made "spontaneous statements" at the scene and had blood on one of his hands, Murphy said.
Geo Gonzalez didn’t believe it happened until he saw remnants of crime scene tape.
"I don’t know — it’s scary, shocking, I thought it was safe you know. I don’t — it’s just shocking," said Gonzalez.
Officers found a dead bird on the kitchen floor and a deceased cat near Nickerson, who appeared to have been beaten in the head with a blunt object, Murphy said.
A hammer with blood and hair on it and a marble pedestal stand with blood stains were recovered near Nickerson.
Diskin was taken to the Area 5 police station, where he told investigators that Nickerson "is the devil, skinny and never put food in her mouth," Murphy said. Among other things, Diskin allegedly said God told him Nickerson was the devil and that he "bashed [her] head in."
Diskin allegedly said he "felt great" after the attack, adding that, "It’s pretty scary to kill Satan."
Diskin had previously displayed aggressive behavior toward Nickerson. On Oct. 26, Diskin ransacked Nickerson’s entire apartment, Murphy said. Diskin’s family called the police and he admitted to messing up Nickerson’s place.
Diskin allegedly made several religious references and indicated that Nickerson was "going to hell." Nickerson didn’t press charges and wanted Diskin to get help.
Diskin was taken to a psychiatric hospital by the police.
Court records show Diskin was arrested in January for aggravated battery to a police officer, but the charges were dropped on March 8, the day he was arrested in the murder case. He had been released on his own recognizance after the Jan. 17 arrest, court records show.
Murphy noted that "clearly there is mental health issues in regards to this incident" but moved forward with asking the judge to deny him bail.
An assistant public defender argued a bond be set for Diskin, who she said suffers from depression, anxiety and bipolar disorder. The attorney also said her client is a writer and does open-mic comedy shows in Chicago.
Though Diskin has a history of mental illness, Judge Susana Ortiz sided with the prosecution and ordered him to be held without bail.
"Given the brutality of this alleged incident, the lack of any type of motive other than the thoughts that were purportedly in his head regarding this person needing to be killed because the devil was telling him what was needed to be done makes him particularly dangerous," she said.
Diskin is due back in court March 29.
The Sun-Times Media Wire contributed to this report.