FORESTVILLE, Md. — Prince George’s County police have made an arrest in a three-year-old killing.

Detectives on Monday arrested 21-year-old Keith Whitley Haines, of Hyattsville, in the August 2010 death of Edwin Yoanis Reyes.

Police say the two men got into a fight at a pool party in Forestville, and that Haines stabbed Reyes multiple times.

Police say Haines has been charged with second-degree murder and is being held without bond. Online court records don’t list a defense lawyer for him.

The police didn’t immediately reveal what led to an arrest this week.