Unintentional shootings typically happen when a child or adolescent shoots a gun and kills another person, usually a friend or sibling. The risk of adolescent suicide is strongly associated with the availability of a firearm and is particularly high if the firearm is kept loaded. Laws that require the safe storage of firearms are associated with lower rates of adolescent suicide. In 2009, more than 80% of all homicides of youths 15 to 19 years of age were firearm-related homicides. Most homicides occur during interpersonal conflict, typically between relatives, friends, or acquaintances.