A 49-year-old moped rider killed Monday after being struck by a commercial van on Kapiolani Boulevard has been identified as Jaymie Y. Arakaki of Honolulu, according to the Honolulu Medical Examiner’s Office.

Police have opened a negligent homicide investigation into the deadly crash that occurred near Pacifica Honolulu at 1009 Kapiolani Boulevard at about 6:40 a.m. Monday.

Arakaki was traveling west on a moped in a contraflow lane. Police said a Kama’aina Termite and Pest Control commercial van operated by a 36-year-old man was traveling west in the second lane when he made an illegal left turn into the path of the moped and struck Arakaki.

Arakaki sustained major head trauma and was taken in extreme critical condition to Queen’s Medical Center where he died.

Police said arakaki was not wearing a helmet at the time of the crash.