Aaron Alexis, the gunman who killed 12 people at the Navy Yard in Washington, D.C, before being shot and killed, was in Newport and Middletown in August, according to police.
Alexis, working as a Navy contractor, made a call to the Newport Police on Aug. 7 and said he had an argument with three people at the airport and claimed that they were following him, said Lt. William Fitzgerald of the Newport police.
Sources said when police responded, he was demonstrating paranoid thoughts, claimed he was being followed and thought he "had a chip in his head."
The police reports were reportedly provided to the Navy Police. Sources say he stayed at hotels in Newport as well as Middletown during his stay.
Alexis, 34, joined the Navy as a reservist in 2007 and he was detached from service for a series of misconduct issues, a Navy official said.
Alexis worked for Hewlett-Packard as an IT subcontractor for the Navy, according to ABC. The incident remains under investigation.