March 10, 8:52 p.m. Officers of the Antioch Police Department responded to the report of a solo motorcycle collision on the 4500 block of Wagon Trail Way. Upon arrival, officers found a 23-year-old male Antioch resident had been riding his off-road motorcycle in the street when he lost control and traveled over the sidewalk, through some bushes and struck a tree and fence. The rider, who was not wearing a helmet, sustained serious injuries and was transported to a local hospital, where he died a short time later. His name is being withheld pending family notification. At this time it is unknown if alcohol contributed to the collision. The collision is still under investigation and nothing further is being released at this time.