Dr. Junaid Shaikh made claims that Galfy was “bludgeoned” but no weapon or blunt object was ever recovered. Galfy’s ear being torn is consistent with an abrasion related to Kai’s torn jeans.
Injuries came from kicking upwards. The injury to the ear was an abrasion from a horizontal kick (from his back on the floor he was kicking him away from him, Kai says).
In the crime scene photos you can see the torn jeans and bare feet footprints tracked in blood down the hall.