http://news.bbc.co.uk/1/hi/world/americas/8168465.stm

There has got to be something wrong with a society where children under the age of five are able to gain access to firearms. The second amendments in the USA gives every US citizen the right to bear and own firearms. Even more bizarre is Castle's Law. This actually gives the right for any US citizen to use deadly means to protect their property. There is a case where a neighbour killed two men who were burgling his neighbour's house, they were running away at the time and he shot them both back with a shot gun. He got away with it scot-free. It does seem most Americans use the Second Amendment as an excuse to build up an arsenal of weapons. However the second amendment can be interpreted in different ways as you'll see if you follow this link. http://www.law.umkc.edu/faculty/projects/ftrials/conlaw/beararms.htm

You're always going to have tragedies like this if you live in a society where guns are so readily available. Any gun nut will not accept that guns are the problem, they always blame it on the person. To a certain extent that is true. But then look at it another way, if the gun wasn't in their home in the first place, children would not be able to get their hands on it.