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The Dallas sniper had been sent home from Afghanistan after being accused of sexually harassing a female, and was described as a loner who followed black militant groups on social media.
Organizers and supporters of the Black Lives Matter movement have condemned the slaying of police officers in Dallas during a protest against the fatal police shootings of black men in Louisiana and Minnesota.
Experts say it's extremely rare and possibly a "first" for a police department to use a bomb robot with an explosive device to kill a suspect who poses a threat.
The Army said Friday that a suspect in the Dallas shooting served in the Army Reserve for six years and did a nine-month tour of duty in Afghanistan.
Gunmen shot and killed five police officers and wounded seven others during a protest over fatal police shootings of black men in other states, authorities said
