A Cumberland County grand jury has indicted a 25-year-old Portland man on charges he stabbed a man to death in his apartment on Grant Street last month.

The grand jury returned an indictment of “intentional or knowing or depraved indifference murder” against Shawn Garland for the death of Richard Meyers, 58 on Aug. 12.

Garland’s lawyer said he suffers from mental illness. He stabbed Meyers, an acquaintance, with a knife, police said.