A gunman killed at least 22 people in separate shootings across Lewiston, Maine, Wednesday night, according to law enforcement sources and reports. 

The possible suspect behind the deadly mass shooting in Maine is reportedly a trained firearms instructor believed to be in the Army Reserve, according to law enforcement sources in the state.

Robert Card, 40, was stationed out of Saco, Maine and reported “hearing voices” and threatened to shoot up the National Guard Base where he was stationed, the sources said.

Card, originally of Boutin, Maine, should be considered “armed and dangerous,” and was reportedly committed to a mental health facility over the summer and was released after a two-week stay, the sources added.

Lewiston, Maine law enforcement officials posted a picture of a white Subaru Outback that they potentially believe is the possible gunman’s car.