Writer Mob killers usually get the stamp of approval before a hit, cops say.
Bosses expect to be consulted.
He asked for permission. It's always been that way. Any time you do that to somebody, out of respect, you ask. Assistant District Attorney Edward Cameron said Vella murdered Mazzuca because he suspected him of being part of a home-invasion gang that robbed members of his family. Vella also believed that Mazzuca had abducted his sister and terrorized her.