FILE - In this July 8, 2016 file photo, police check a car after a snipers opened fire on police officers in Dallas on Thursday night. Dallas police were the first in the nation to use a robot to deliver and detonate a bomb to kill a suspect, but other law enforcement agencies are willing and able to follow suit, including some that even have trained for the day when they'd have to do so. The killing of Micah Johnson using a robot-delivered bomb ended a night of terror in which he shot 14 officers, killing five of them, and also wounded two civilians. FILE - In this July 8, 2016 file photo, police check a car after a snipers opened fire on police officers in Dallas on Thursday night. Dallas police were the first in the nation to use a robot to deliver and detonate a bomb to kill a suspect, but other law enforcement agencies are willing and able to follow suit, including some that even have trained for the day when they'd have to do so.

Amid the protests against police brutality spreading across the country, Dallas is still haunted by the death of five officers at the hands of a lone gunman. However, some were concerned by the manner in which the police ended a standoff with 25-year-old Micah X Johnson, the suspect behind the shooting. The standoff ended early Friday morning when the police detonated a bomb robot, killing the suspect. The Dallas Police Department defended its action saying that the bomb was "a last resort." In a statement published Saturday, the Dallas Police Department said, "When all attempts to negotiate with the suspect, Micah Johnson, failed under the exchange of gunfire, the Department utilized the mechanical tactical robot, as a last resort, to deliver an explosion device to save the lives of officers and citizens." Police used the Remotec, Model F-5 with claw and arm extension and an explosive device of C4 with a "Det" cord.