He is now at the Baltimore County Detention Center and is being held without bail.
Baltimore city police are investigating several shootings overnight that left one man dead and 2 others hurt, including a teenager.
Blandon taught at Woodhome Elementary/Middle School in Northeast Baltimore.
The bodies, one male and one female, were found on Tuesday.
Westerman began working for the Baltimore County Police Department in 2013. He's currently suspended without pay.
There is no word on their conditions at this time.
Anyone with information or who knows the identity of this male is asked to call Homicide Detectives at (410) 396-2100.
All of them were taken to local hospitals with non-life threatening injuries.
She was reportedly among a crowd of people at the time.
Personnel from the hospital came out to help, but the man was pronounced dead on the scene.
