A Dallas man was killed last week when his car crashed into the trailer of a slow-moving semi-truck on Interstate 635 in Mesquite, police said.

Arrest in fatal Mesquite crash What we know: The Mesquite Police Department responded to the crash at 3:17 a.m. on Sept. 9 in the 21100 block of northbound IH-635, near North Gross Road.

Investigators learned that a white Alfa Romeo sedan crashed into the trailer of an 18-wheeler.