CHICAGO (STMW) — A man who allegedly stabbed his brother with a steak knife in June at his Mount Prospect home was found hanged at the Cook County Jail, authorities said.

Robert Jastrebski, 55, was pronounced dead at the jail at 26th Street and California Avenue at 3:51 a.m. Saturday, according to the Cook County Medical Examiner’s office.

He died in an apparent hanging, and an autopsy is scheduled for later Sunday, according to the medical examiner’s office.

Jastrebski was initially ordered held at the jail on $100,000 bond, charged in a June 29 stabbing that injured his brother, police said previously.

The brothers were arguing about 1:40 p.m. that day in Jastrebski’s home in the 100 block of South Audrey Lane he allegedly stabbed his brother in the abdomen and hand with a steak knife, police said at the time.

When the 59-year-old brother was in his vehicle calling police, Jastrebski allegedly rammed his vehicle into the brother’s car before driving away.

He was arrested a short time later, and later admitted to stabbing his brother, authorities said at the time.

A spokesman for the Cook County Sheriff’s office had no immediate information about the fatality.

(Source: Sun-Times Media Wire © Chicago Sun-Times 2013. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)

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