Columbus police have arrested a man and a teen boy for the December fatal shooting of a local man. 20-year-old Michael Watson Junior and 15-year-old Michael Henderson are charged with killing 26-year-old Marvin Ector at a gas station on the North side. The two are also charged with shooting and wounding 31-year-old Darnell Gamon. Police have not released a motive. Both are due in court today.