'I wouldn't be able to stand it if my grandchildren had to be scared and worried the way too many children across our country feel right now,' Democratic nominee says.
Hundreds continued to demonstrate after videos fail to resolve the question of whether Keith Scott had a gun in his possession when shot by police.
Police also release photo of a gun they say was in Scott's possession, although it can't be seen in the released footage.
Under pressure, police chief says authorities can release dashcam and body camera videos without 'adversely affecting' investigation.
Cops don't enforce curfew on fourth night of protests over the police killing of Keith Scott, 43.
The body camera video contains valuable information about the police tasked with protecting citizens' rights.
Police contend Scott was carrying a gun when he approached officers and ignored orders to drop it. His family said he was holding a book, not a firearm.
One person was on life support after being shot by a civilian late Wednesday as riot police used tear gas, rubber bullets and flash-bang grenades to try to disperse demonstrators.