Weird news: 3 year old boy picks up gun and shoots

This is getting to be a problem on a regular basis. The proliferation of guns in the United States is pretty high, given that the constitution protects the right of the people to bear guns. As a result, a large number of guns are in private hands. There are mass shootings happening from time to time, where somebody who is over the mental balance takes a gun or rifle and starts shooting people.
Another tricky situation is with regard to gun safety. Most people who have guns ensure that the guns are carefully locked away, so that few people have access to them, especially children. Children do not have that knowledge about the difference between a toy gun and a real gun, and this has proved deadly many times, such as in this case. Here, the boy picked up a gun and pointed it to his older sister and pulled the trigger, shooting the girl in the head. Tragically, the girl died soon after in a bitter impact to the family (link to article):

The pistol lay on the bedroom nightstand loaded and untouched. And then it was in the toddler's hands, pointed toward his older sister. A moment later, Kimberly Reylander was on the floor, bleeding from a gunshot wound to her head. The adults rushed into the room. The nine-year-old girl was flown by medical helicopter to Children's of Alabama Saturday, where she died of her injuries, according to AL.com. Irondale, Ala., Police Chief Ken Atkinson told AL.com and WIAT that the children's great-grandfather had left the pistol on his nightstand Saturday morning, not knowing that the kids were coming over. He wasn't home at the time of the shooting, but the kids' grandmother and uncle - whom police detectives are now interviewing - were, though they didn't know there was a gun in the room where the children were playing.