He’s called that because a group of crows is called a murder.
He looks so formal with his hat and cravat-like plume.

As you can tell, Mr. Murder is a chick magnet (no pun intended) and a magnet to food.
He’s kind the boss of a group of bird pokemon, being stronger than all of them; he’s even stronger than a Pidgeot but only by a bit.

He has an eloquent British accent to add to his dashing looks. His favorite food above all others are blackberries. He loves them. ^^