One of the local farmers ran up with a rifle, but all he managed to do was fumble the clip and drop it to the ground.
Malcom quickly picked up the clip and blatantly ripped the rifle free from the farmer, and loaded the clip in.
He took aim, and fired, the bullet tore through the dog that had her by the leg,  it let out a loud yip, releasing Selene momentarily.
Malcom fired again, this time the bullet sunk deep into the dog's left eye.
The ex soldier dropped to one knee, took aim,  but couldn't get a clear shot. 
"Fuck!"
He jumped to his feet and ran over to them, grabbing the barrel of the rifle, he swung it like a bat *whack*
The butt of the rifle connected with the dog's head, knocking him loose from Selene, but now the dog has turned to face Malcom.
It leaps at his throat, and Malcom swings the rifle again with all his might.
*Crack*
He wasn't sure if the cracking sound was the rifle or the dog, or both, lucklily for him, it was both.
Malcom had broken the rifle and the mutt's neck on impact.
"You broke my gun." Said the farmer.
Malcom knealt beside Selene, "Hold on, it's over now. "
He turned his head at the farmer who was holding the broken rifle, "I've had this rifle for fifty years, and now...."
"Fuck the rifle old man, get a damn doctor now!" Malcom ordered.