Child shot by brother

Here is a good reason why there needs to be more strict gun laws.
As awful as it it when a child shoots another, why would anyone want to shoot someone with a BB gun anyway?

Article:

CINCINNATI (AP) — An 8-year-old Cincinnati boy was fatally shot in the chest Saturday while one of his brothers was playing with a loaded handgun that he thought was a BB gun, police said.
http://start.toshiba.com/news/read/article/ap-ohio_boy_8_fatally_shot_while_playing_wi-ap