Fred Myers, Boomerang is former professional baseball player turned assassin for hire. He hurls boomerangs with deadly accuracy ala Bullseye (one of Daredevil's arch enemies). This dude has all sorts of trick boomerangs as well especially exploding boomerangs. He is not much of a threat to the web-head (or any of his other targets for that matter), and should probably think of another line of work.
*Note, DC comics has a similar character named Captain Boomerang who may have been an influence on Marvel's Boomerang.
Spider-Man 3 debuts in 258 days!