This is the sickening footage of an eight-year-old boy being kicked in the head which has led to three people being arrested of of aggravated assault, child abuse and enabling child abuse.Joshua Whittington, 28, is believed to have filmed the 15-year-old son of his girlfriend Tracy Casteel carrying out the stunt as she watched on. Two horrific clips were later uploaded to Instagram.The first video shows the eight-year-old victim, wearing a football helmet, being kicked in a two-footed lunge. "What this kid will do for a piece of gum!" the video was captioned.The second clip, since deleted, is said to show the teen taking a running jump before again kicking the boy, believed to be Whittington's son, in the head with both feet."The kid loves it. Like, no joke. He asked us to make another video. He thinks he's famous now," the caption apparently read.News story is available at NY Daily News