Black Fox: Good Men and Bad (1995)

Alan Johnson (Christopher Reeve) and Britt "Black Fox" Johnson (Tony Todd) have been blood brothers ever since Alan freed Britt from slavery. Now the two share a homestead on the Texas frontier. One night, an intruder with a grudge against Britt storms into Alan's house, shooting both Alan and his wife. When his wife dies, Alan sinks into drunken depression, then leaves abruptly to find her killer. Britt, now a deputy sheriff, goes off in pursuit of his friend.