The Rock County Medical Examiner’s Office has identified the man who died Monday following a crash on Janesville’s northside.  35-year-old Ronnie Jones of Janesville died from injuries sustained in the crash, which occurred at around 2:45 a.m. along Milton Avenue near the I90 overpass. Janesville police say speed and alcohol were likely factors in the crash. Officers reportedly saw Jones’ vehicle fishtailing and traveling at 100 mph along Milton Avenue just prior to the crash. Jones was ejected from his vehicle and died at the scene. He was the only person in the vehicle at the time.