UPDATE: Zachary Michael Patten has been caught in South Bend, Indiana.

ORIGINAL STORY: Police in multiple counties in southwest Michigan are searching for a man they say murdered two people - one in Kalamazoo and one in Constantine.

The Kalamazoo Department of Public Safety says 32-year-old Zachary Michael Patten shot and killed a 31-year-old woman just after 9:30 p.m. Thursday, July 20.

Patten is also suspected in a murder than occurred in Constantine only a short time after the Kalamazoo incident. WWMT reports that the person killed in Constantine is believed to be the new husband of Patten's ex-wife. He was shot and killed when he opened the door to his family's home.

Patten is believed to be driving a silver 2004 Chrysler Pacifica with Michigan license plate CLN 8224. The vehicle has a "skeleton family" sticker on the rear window and a spare tire on one of the front wheels.

If you see Patten, police advise that you do not approach him and call 911 immediately.

If you have any information regarding either crime, is asked to call the Kalamazoo Department of Public Safety at 269-337-8994, Silent Observer at 269-343-2100 or the St. Joseph County Sheriff's Department at 269-467-9045.