(MCT) — The widow of a West Rogers Park man who died of cyanide poisoning weeks after winning a $1 million lottery jackpot was questioned extensively by Chicago police last month after the medical examiner's office reclassified the death as a homicide, her attorney told the Tribune on Tuesday.

Authorities investigating the death of Urooj Khan also executed a search warrant at the home he had shared with his wife, Shabana Ansari, according to Steven Kozicki, her attorney. Ansari later was interviewed by detectives for more than four hours, answering all their questions, the attorney said.