That's mostly his own blood gushing out of his hand, no doubt. In knife attacks it's common — especially with folding knives to close on the perp's fingers cutting them to the bone, or their fingers slide down onto the blade. I pray God takes her out of this absolute nightmare and heal her soul. This black psychopath has really hit the zenith of senseless insanity. The Judge who let him out should be locked up with him in a cell. Turn off the lights.