Yes, any breed can kill a person. The method is largely irrelevant if the outcome is the same 
Since 2007, Dobermans, Jack Russells, German Shepherds, Neapolitan Mastiffs, mongrels, Malamutes, Lakeland Terriers, Springer Spaniels and Chow Chows have all been responsible for fatal attacks on humans.
None of them are bully breeds.