Cops Release Thermal Imaging Video Of Captue Bombing Suspect

Police have released the thermal imaging from a helicopter to monitor Dzhokhar Tsarnaev's movement inside of the boat he was hiding in.

Dzhokhar, who police say was badly injured, remained prone on the floor of the boat for much of the video, as police use a robot to tear away the tarp on the boat.

You can also see police throwing flash-bang grenades in the boat.

Here's the video: