Filthy Scumbag bastards!

Apologies for my title but I am positively seething. Enraged I am. Impotent, the only thing I can do is rant here when I would like to turn into Chuck Norris and fucking go on a hunt and do some serious head kicking.
Allow me to explain. There is a small park near my building, a little oasis in a sea of concrete. In this little park is a tiny playground, a cute harmless affair with a swing, slide, one of those horse heads on a big spring thingies that babies seem to like and a little woonden railing around it to keep dogs from crapping all over the sand and wood chips.
Surrounding this little playground is a patch of grass, two benches where ould lads and ladies like to sit on warmer days and watch the world go by. There are a four raised flower beds, which up until last Sunday had a whole profusion of flowers starting to some up, daffodils, crocuses and other stuff ( I'm no plant expert but they looked pretty).
This morning, as I made my way back from the shop, I cut through this little park and slammed to a halt in dismay.
It has been destroyed.
Some fucker or fuckers have kicked all the railing out of the kids' play ground. They have set fire to the swings, one is burnt all the way through, the other is a mangled heap of plastic, dangling from one rope. They had obviously tried to burn the little horse too, its blackened melted head will no longer make kids squeal in delight. The benches have been spray painted with all manner of graffiti, the flowers are gone, yanked up, crushed, trampled, some of them flung to die and wither on the track scored the grass. There is broken brown glass everywhere.
I know I've had a sickie week and am probably a bit over sensitive, but I swear I felt like crying when I saw it.
Why, why would someone do something like this? Why destroy something so pretty and harmless. What pleasure did the bastards take from doing this? Did they get any or was it just 'something to do?'
WHAT THE FUCK IS WRONG WITH PEOPLE?