Police Search for Driver Suspected of Causing Fatal Crash

A man injured in a crash in Diamond Bar has died and California Highway Patrol officials are asking the public to help find the vehicle that caused the collision.

On Tuesday, 24-year-old Adam Roland, of Glendora, who had been hospitalized at USC Medical Center, was taken off life support, according to CHP reports.

The incident happened at 1:13 p.m. on June 30. Officers said Roland was driving on the northbound 57 Freeway about 80 miles an hour.

Just south of Pathfinder, CHP officials said a silver or white Mercedes Benz or BMW started to merge out of the carpool lane and into Roland’s 1999 Dodge Stratus, which was in the fast lane.

Roland swerved to the right to avoid hitting the car and lost control of the Dodge, officials said. The rear of his car struck a metal guard rail along the right shoulder. The car then spun off the metal guardrail, down the embankment where the left side of the vehicle struck a tree.

Roland was critically injured. He had to be extricated from his vehicle and was flown to USC Medical Center. Roland's passenger, 21-year-old Connor McClain, also from Glendora, suffered minor injuries and was treated at San Dimas Community Hospital.

“Any bit of information is important,” said CHP spokeswoman Kerri Rivas. “Even if it seems insignificant.”

CHP officials ask anyone with information to call the Baldwin Park Area office during normal business hours at (626) 338-1164 or after hours through the Los Angeles Communications Center at (323) 982-4900.