The trial of the man accused of shooting Corey Ballentine and killing then-teammate Dwane Simmons last year will not begin today as scheduled.

The Topeka Capital-Journal reports that Francisco Alejandro Mendez, 18, will instead undergo testing to determine whether he is competent enough to stand trial. That competency hearing is scheduled for 10 a.m. on Feb. 27. Accordingly, a new trial date has not been set.

Mendez faces a multitude of charges, including first-degree murder and four counts of attempted murder from the April 28 shooting, which came hours after the Giants selected Ballentine in the sixth round of the draft. Mendez also faces several other charges, including seven counts of aggravated robbery stemming from unrelated incidents.

Simmons died at the scene of the shooting, while Ballentine survived and went on to play in 13 games (two starts) for the Giants last season.