Compared to the US, our gun crime stats are a teeny tiny drop in the ocean!
Obama has tried, but making a big change in their gun laws will be almost impossible. For a start the NRA has huge political clout over there, lots of money behind it and politicians need huge amounts of money behind them there to get elected.
Then, it is amazing how otherwise entirely sensible and kind people think that it's normal to have guns in the house, or even tote them about when out shopping or carrying on with their daily lives, The right to bear arms seems engrained The attitude is that if they don't have these guns, they will be immediately vulnerable and under attack. It's madness, total paranoia in fact