Federal authorities are offering a $5,000 reward for information that leads to the arrest of a man whose 25-year-old girlfriend was found dead Monday in the trunk of her car, parked in a northwest Baltimore apartment complex.

U.S. marshals obtained a warrant Tuesday night for the arrest of Jermarl Jones, 32, whom they had been tracking on distribution of heroin charges, said Donald Donovan, Chief Deputy U.S. Marshal.