Richard C. Conn, 26, of Milwaukee was shot and killed on July 5, 2014 near 11th and Atkinson. He was found on the ground with a gunshot wound to the head and was pronounced dead at the scene; the Milwaukee County Medical Examiner’s Office ruled the death a homicide.

Investigators tied Conn to an earlier string of shootings. On May 17, 2014 he survived a shooting in the 3700 block of N. 10th Street where AK-47 type shell casings were recovered; the next day a double homicide in the 3600 block of N. 11th Street produced casings that matched. Conn had identified a shooter from the May 17 incident, and that identification led to an arrest and charges in that case.

A witness said two men armed with handguns approached Conn as he walked toward his parked SUV on July 5; one shot him in the head, then tried to keep firing as Conn fell but the weapon appeared to jam. The suspects fled and left behind a bag containing nine corner-cut baggies of marijuana. A Milwaukee man, Robert McCorkle, was charged in connection with Conn’s killing.

Did anyone who knew Conn or his movements that day see anything that could help fill gaps in the timeline?