MURFREESBORO, Tenn. (AP) -- A jury has convicted the roommate of slain Middle Tennessee basketball player Tina Stewart of second-degree murder.

The jury delivered the verdict Monday against 19-year-old Shanterrica Madden after deliberating for about two hours.

Stewart was fatally stabbed in the chest March 2, 2011, at the off-campus apartment the two shared in Murfreesboro. Madden acknowledged stabbing Stewart but claimed it was self-defense against her larger and more athletic roommate.

Prosecutors had argued for first-degree murder when they said that the killing was premeditated and intentional after Stewart reported Madden for smoking marijuana.

The 21-year-old Stewart was a veteran on the Lady Raiders team. It was preparing for the Sun Belt Conference tournament when she was killed. They lost their emotional opener in that tourney.