They(robbers) did not take money that means there should be hiding another reason. i think they wanted to kill another clerk,not the our innocent nepali dude.the clerk knows to them(robbers) that's why he went behind the cooler when they(robbers) came inside. but our innocent nepali dude did not know anything and what to do at the time, despite he got shot in his head. that's horrible....!!!ever i have heard in my life. but i am happy they got busted...!!!