Surveillance video of suspect Aaron Alexis released in Navy Yard massacre

Aaron Alexis went on to shoot and kill 12 people, putting Washington on lockdown.

WASHINGTON - Officials have released chilling new video of the moments before the Washington Navy Yard massacre.

The video comes as the FBI releases a motive for the deadly shooting. It shows government contractor Aaron Alexis preparing to open fire last Monday.

Alexis went on to shoot and kill 12 people, putting Washington on lockdown.

The FBI has also released photos of his guns, one with the phrase "end the torment" etched into it.

Alexis left a note saying he was driven to kill by low-frequency radio waves.

advertisement | advertise on News 12

Top 5 Must See

Police say Jeustin David Maldonado, 17, of Uniondale, 1 Teen charged in connection to Uniondale fatal shooting
Southampton High School is proposing to bump the 2 East End high school proposes later school start
New Cassel's Joshua Golson-Orelus is charged with about 3 Trial begins for man accused in deadly robbery spree
Although Obama had long intended to take one 4 Obama defends decision to commute Chelsea Manning's sentence
Students from Babylon, Three Village and Smithtown school 5 31 LI students to attend Donald Trump inauguration

advertisement | advertise on News 12

More News

Computer contractor Aaron Alexis killed 12 people and Washington Navy Yard reopens

The Washington Navy Yard has reopened for the first time since Monday's shooting massacre. Computer

Sorry to interrupt...

Your first 5 are free

Access to News12 is free for Optimum, Comcast®, Time Warner® and Service Electric℠ video customers.

Please enjoy 5 complimentary views to articles, photos, and videos during the next 30 days.