Officers say the two walked into a 7-Eleven on Sepulveda Boulevard around 1 a.m. Saturday and stole some beer.
The 49-year-old clerk chased after them.
That's when he was severely beaten and left on the ground with a fractured skull.
He's still in the hospital in a coma.
Police say a third suspect, who is not pictured, was involved.
It's believed they all got away in a silver or gray four door car.