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DALLAS, Texas–A deadly ambush on police patrolling a peaceful rally in Dallas.

Officials believe a lone gunman opened fire on the crowds hitting twelve and killing five officers.

Authorities have now released the identities of the Dallas shooting victims.

The five victims are the Dallas police department’s Patrick Zamarripa, Michael Smith, Michael Krol, and Lorne Ahrens, and DART officer Brett Thompson.

Zamparripa was a 32-year-old, Navy veteran who served three tours in Iraq.

He had been on the Dallas police force for five years.

He leaves behind a wife and two-year-old daughter.

Krol, 40, had been with the Dallas police department since 2007.

He was a Michigan native, where he worked as a correctional officer from 2003 until 2007.

“He was living a dream of being a police officer,” said Susan Ehlke, Krol’s mother said. “[He] just turned 40 in April. He knew the danger of the job but he never shied away from his duty as a police officer. He was a great caring person and wanted to help people. A wonderful son, brother, uncle, nephew and friend.”

Smith, 55, had been with the Dallas police department for over 25 years .

He was a former Army Ranger and father of two young girls.

Ahrens, a former semi-pro football player, is a 14-year veteran of the force.

He leaves behind his wife, a Dallas detective, a ten-year-old daughter, and 8-year-old son.

He would go in uniform to his daughter’s school to talk about policing and safety.

Thompson, 43, had been with DART since 2009.

He is the first officer lost in the line of duty since DART’s formation in 1989.

He was a newlywed, having just celebrated his nuptials two weeks ago.