(Copying my comment from another post)

Reminder this already happened in Houston Dallas in 2016. A sniper in a parking garage fired on some cops watching a protest, and they ended up strapping a bomb to a robot and driving it around a corner to the sniper’s position, then detonating it to kill him.

https://www.texastribune.org/2016/07/08/use-robot-kill-dallas-suspect-first-experts-say/