Police Officer Jason Schneider, 36, was shot several times. He was about to serve a search warrant when the suspect opened fire. Schneider returned the fire.
The offender was also injured and is hospitalized.
Schneider was a 13-year veteran of law enforcement, spending 10 years in a special tactical unit of the Baltimore County Police Department, where was the unit's leader.
"This is particularly hard. He was a great guy. Can you imagine what he did in 10 years of tactical?" Baltimore County Police Chief James Johnson said.