. >> well, kai. howard county police are offering a reward for information on an armed robbery. this is surveillance video of the robbery which took place in the 7500 block of columbia road in colombia, around 2:30 in the morning. a man wearing a black, hooded sweatshirt, with a black mask, covering his face, ordered the employee to empty the registers. the employee complied. the robber got away with an undisclosed amount of money. howard county police are asking anyone with information to call 410-313-stop. >> again, you can get a $500 reward for information about this robbery. >>> a major drug bust in north baltimore. baltimore police raided a home this morning in the 4900 block of st. george's avenue. they found more than $55,000 in cash, and lots of drugs ready to be sold. anthony hall was arrested. police say he has an extensive criminal history, including murder and drug-related charges. >>> one week later, businesses are still trying to clean up after that huge explosion, following a train collision with a truck in baltimore county. wjz is live in rosedale. investigator m