A 4-year-old boy accidentally shot and killed his 2-year-old cousin at a home in a Southern California town Friday, and their grandfather was later arrested for allegedly leaving the gun in a place accessible to the children, authorities said.
ref:http://www.foxnews.com/us/2018/07/21/grandfather-arrested-after-boy-4-accidentally-shoots-kills-2-year-old-cousin.html