Authorities say the men were among five motorcyclists traveling on Highway 14 near Janesville Sunday about 8 p.m. A mid-sized SUV, possibly a Nissan, crossed the center line and hit the first two motorcycles, killing 24-year-old Mitchell Vance, of Janesville, and 18-year-old Devin Julius, also of Janesville, formerly of Freedom.
The other three motorcycle riders and another vehicle took evasive action and avoided the crash.
Sheriff's officials say Vance was pronounced dead at the scene. Julius died at Mercy Hospital in Janesville. Investigators want to hear from possible witnesses to the crash or anyone who saw a mid-sized Nissan SUV in the area at that time.