WOODSTOCK – The Huntley man believed to be responsible for a Memorial Day domestic shooting that left his brother dead and himself in critical condition has died, authorities said.
Mark R. Grundei, 50, died at a Hospice Care Center in Woodstock on Wednesday, nine days after the incident at 11469 Morning Glory Lane, Huntley, according to a news release from the Huntley Police Department.
Police hadn't pressed charges but believed Grundei shot and killed his brother, Robert A. Grundei, 48, of Coral Springs, Florida. Their 81-year-old mother, Alyce Grundei, suffered a graze wound to the head, but was treated and released the night of the shooting.
The two brothers were arguing over living arrangements. Robert Grundei was up from his Florida home but making plans to live with Alyce Grundei, which would potentially force out Mark Grundei, who currently lived with his mother, authorities have said.
The family also was mourning the death of another brother to the men, Brian, who drowned weeks earlier in Lake County.