A 32-year-old Navy reservist is among the police officers killed in the Dallas sniper attack that claimed the lives of five police officers and wounded seven others.

Master-at-Arms 2nd Class Patricio Zamarripa was killed Thursday night in a hail of bullets from a shooter or shooters who took aim at from an elevated position at police officers providing security at a Black Lives Matter protest in the downtown area.

Dallas Police Chief David Brown said Friday morning that at least one shooter told police he was upset over recent high-profile police shootings of black men and wanted to kill white police officers. Brown said the shooter claimed to be acting alone and was not affiliated with any groups.

A Navy spokesman confirmed Zamarripa was among the dead.

Zamarripa joined the Navy August 2001, and served with Mobile Security Squadron 21 in Portsmouth, Virginia, at Naval Air Station Pensacola, and with Naval Security Force, Manama, Bahrain, before transferring to the Navy Reserve in 2009. He was currently assigned to Navy Cargo Handling Battalion 13, Gulfport, Mississippi, according to a bio provided by Navy officials.

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Image courtesy of the family of Patrick Zamarripa