Authorities say investigators from the New Haven FBI are joining the manhunt for the gunman.

New footage shows FBI activity outside the suspect's last known address in Bowdoin, Maine. 

A heavy police presence was seen outside of the location. Authorities demanded that anyone inside the house come out.

The gunman opened fire Wednesday night at a bowling alley and a bar.

Police say at least 18 people were killed and 13 injured in Lewiston, Maine.

Residents there are still sheltering in place tonight. Schools and businesses remain shut down.

Police are looking for 40-year-old Robert Card. The search now spans multiple states.

Footage obtained by News12 shows police blocking off roads in Maine.

Police say Card is a U.S. Army reservist and a certified firearms instructor.

Officials say Card recently reported having mental health issues and threatened to shoot up a National Guard base.

Gov. Ned Lamont is ordering flags to half-staff in honor of the victims.

Gov. Lamont wrote in a statement, "The news of these mass shootings last night in Maine is sickening and heartbreaking. The growing number of mass shootings in our country is infuriating, and we cannot become complacent to this epidemic of gun violence."