A second teen has been charged with attempted murder of a 35-year-old man who was shot during a drug robbery at an apartment on the southeast side of Cedar Rapids last month.

Keanan Mercer, 18, of Cedar Rapids, was charged Tuesday with attempted murder, first-degree robbery and first-degree burglary. He is accused of participating in a robbery and burglary where a rifle was fired, striking Joshua Spears and causing serious injury, according to a criminal complaint. Marijuana was stolen from the unlocked apartment.

Cedric Lang, 17, of Cedar Rapids, was previously charged with attempted murder, first-degree robbery and first-degree burglary in the incident.

According to a police report, a third man may be involved but no other arrests have been made.