Maine mass shooter had numerous run-ins with authorities, showed warning signs long before shooting

People gather at a vigil for the victims of Wednesday's mass shootings, Sunday, Oct. 29, 2023, outside the Basilica of Saints Peter and Paul in Lewiston, Maine. (AP Photo/Matt Rourke)

Authorities in Maine spent Monday continuing to piece together the events that led to the worst mass shooting in the state’s history — with the suspect’s record of interaction with police and warning signs involving mental illness and violent threats emerging as key threads.

Robert Card — the suspected shooter who was found dead Friday of a self-inflicted gunshot wound — underwent a mental health evaluation last summer after he began acting erratically at an Army training facility in New York, officials said. A bulletin sent to police shortly after last week’s attack said Card had been committed to a mental health facility for two weeks after “hearing voices and threats to shoot up” a military base.

Authorities have not said whether they believe the 40-year-old Card planned his shooting rampage in advance. But nearly three months ago, he tried and failed to acquire a device used to quiet gunshots, according to a gun shop owner in Auburn.