Prosecutors say the dispute over $20 led Chiselom to take a duffel bag belonging to Law's girlfriend as he left the apartment.
Law then followed and kicked Chiselom down a stairway outside the apartment.
Prosecutors say Law then stabbed Chiselom at the bottom of the stairs. A defense attorney argued Chiselom ran back up the stairs attacking Law, who reacted in self defense.
The jury decided against the more serious charge of voluntary manslaughter.
(Copyright 2009 by The Associated Press. All Rights Reserved.)