An unidentified motorcyclist was killed in Rancho Penasquitos on September 5^th. The 21-year-old man was traveling eastbound on Mercy Road when he lost control entering a curve and struck the center divider. His motorcycle then hit a tree and flipped. Emergency responders administered CPR at the scene, but the man later died at the hospital. Witnesses say the man was traveling over 80 mph in a 45 mph zone at the time of the accident.