Inbound and outbound train movement was halted about 7:35 a.m. near Buffalo Grove, according to a service alert from Metra.
The suspect, Anatoliy Ermak, died at 7:02 a.m. Monday at the Hennepin County Medical Center in Minneapolis, according to a statement from Buffalo Grove police.
The man accused of murdering his ex-wife, Nataliya Ermak, 55, and her husband Roman Frid, 69, in a parking garage in Buffalo Grove has shot himself in the head and is under guard at a hospital in Minnesota.
Police are investigating after a man was found suffering from a self-inflicted gunshot wound Friday night in Edina, Minnesota. Officials believe he is a suspect wanted for a double murder in Buffalo Grove, Illinois.
Anatoliy Ermak, 64, is wanted on two counts of first-degree murder in connection to the Sunday evening attack, Buffalo police said in a statement.
Police in Buffalo Grove say a man allegedly shot his ex-wife and her husband in a targeted double homicide, but that his whereabouts and motive remain unclear.
A tornado warning issued for several northern suburbs in Cook, Lake and McHenry counties has expired.
Two masked men, one of them wielding a "large hunting knife," broke in to them home and stabbed the 49-year-old and three others inside the home.