More details were unearthed in a previously unreleased video of the police shooting death of 12-year-old Cleveland boy, Tamir Rice. The Northeast Ohio Media Group released surveillance footage of the aftermath, which shows Tamir's 14-year-old sister being thrown to the ground and handcuffed. 

After the victim's sister was placed in a squad car, the footage shows that four minutes passed before first aid was administered to the dying boy. 

An earlier video shows police shooting the 12-year-old just seconds after arriving on the scene. They mistook his pellet gun for a real handgun and fatally wounded Tamir.

Check out the recently unearthed video above.

Source: Huffington Post