These are the good guys.
And, as for people not showing up to B-Day parties...happens in our neck of the woods all the time, especially this time of year. (Onnly one kid showed at WBill Jr's party last year, about this time, and Jr. has been the only kid to show at a handful of others....). It's the time of year, people are travelling, school is letting out, lots of things happening, etc etc etc.
But, "It's my party and no one came" works the pity angle nicely. More important that the cops showed and kid still had fun.