ID Of Motorcyclist Killed In Arlington Heights Crash Released

ARLINGTON HEIGHTS, IL — The identity and cause of death for a motorcyclist killed Tuesday night in a three-vehicle crash has been released. Sean F. O'Brien, 44, of Des Plaines, died from multiple blunt force injuries at the scene of the crash at Northwest Highway and Waterman.

Police said a 16-year-old driver involved was cited for failure to yield right while turning left, and failure to reduce speed to avoid an accident. A preliminary review has excluded the presence of alcohol or drug impairment with respect to the at-fault driver. The 16-year-old is due back in court on Nov. 21.

Police said an investigation is ongoing, and a final report usually takes between six and eight weeks to complete.

RELATED: Motorcyclist Killed In 3-Vehicle Crash — Arlington Heights PD

The Mount Prospect police and fire departments responded to the scene at around 6:30 p.m. Tuesday night. Authorities said it was "quickly" determined the impact occurred on a section of roadway within Arlington Heights’ jurisdiction.

According to preliminary information released Tuesday night, a blue 2010 Genesis coupe was travel traveling eastbound on Northwest Highway approaching Waterman. A red 2017 Harley-Davidson motorcycle was traveling westbound on Northwest Highway approaching Waterman. At the same time, a silver 2020 Hyundai Elantra was also traveling westbound behind the motorcycle. Police said the 16-year-old driver of the Genesis made a left turn and struck both the motorcycle and Hyundai.

First responders found the motorcyclist unresponsive and began lifesaving efforts. Mount Prospect police officers deployed an AED and started CPR. Mount Prospect Fire Department personnel arrived and took over patient treatment. The first responders determined the rider suffered fatal injuries and was beyond medical care as he was pronounced at the scene.

Northwest Highway was closed in both directions at the Arlington Heights and Mount Prospect border for a time Tuesday night while police continued investigating the crash.