At about 8:15 p.m. on a weeknight, police believe Charles Richey, a 49-year-old Atlantan, stabbed a MARTA rider to death after the man asked him for money.

That’s according to warrants released Thursday on the Jan. 24 killing, which is said to have happened on a train in the area of the Avondale station. The two fought after Richey declined to give the man money, police say.