DALLAS — (AP) Dallas police have identified a 36-year-old man with a criminal record as the suspected gunman who killed one person and critically wounded two others, including a paramedic.

Authorities said during a news conference Tuesday that Derick Lamont Brown was has been identified as the man found dead in a local home after the shootings Monday in a neighborhood east of downtown.

Investigators believe Brown fatally shot his roommate before going outside, where he shot a neighbor and later a responding paramedic. The paramedic and neighbor were critically wounded.

Assistant Police Chief Randy Blankenbaker says Brown’s criminal history includes arrests for aggravated assault, driving while intoxicated and illegal gun possession.

The shootings brought a heavy police response and a lockdown of the area. Investigators believe Brown was shot and injured by police, but that he fatally shot himself inside his home.

DPD & City officials provide info in a press conference on the situation involving the DFR EMT paramedic who was sh… https://t.co/JKFqXsBQIs

— City of Dallas (@CityOfDallas) May 1, 2017

The City of Dallas put out the following statement on the injured paramedic:

“The Dallas Fire-Rescue firefighter-paramedic who was injured in yesterday’s incident is William An. He has been with the fire department for 10 years and seven months. An remains in critical, yet stable condition at Baylor University Medical Center as he continues to undergo procedures to address his injuries.

He is surrounded by family, friends and co-workers. William An, his wife, Jayne, and their three-year-old son are currently expecting their second child. “By the grace of God, my husband is doing okay. We are greatly thankful for all the prayers sent our way. Please continue to pray for Will and keep him and our entire family in your prayers. Special thanks again to the first responders who risk their lives daily for others. God bless,” Jayne said.

Dallas Fire-Rescue wants to thank everyone who has been supporting him on his road to recovery, including the medical staff, Dallas Police Department, and all partner agencies that served in a supporting role.”

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