Another scenario.
Good guy goes into the bathroom and surprises bad guy already in bathroom. The bad guy tries to attack good guy but good guy manages to subdue or knock out bad guy and take his rifle. he does not see the other guns in a stall. He does not want to leave the rifle with the bad guy so he takes it and leaves the bathroom. Now you have a good guy with a rifle leaving the bathroom just like the bad guy was before. Good guy is understandably uncomfortable with the rifle in a mall so maybe he clumsily tries to hide it, maybe he nervously fumbles around with how to carry it, whatever. He probably will not look calm and harmless.
This does not change any information that Eli would have seen - some guy coming out of bathroom with an AR-15 rifle.
Good guy goes into the bathroom and surprises bad guy already in bathroom. The bad guy tries to attack good guy but good guy manages to subdue or knock out bad guy and take his rifle. he does not see the other guns in a stall. He does not want to leave the rifle with the bad guy so he takes it and leaves the bathroom. Now you have a good guy with a rifle leaving the bathroom just like the bad guy was before. Good guy is understandably uncomfortable with the rifle in a mall so maybe he clumsily tries to hide it, maybe he nervously fumbles around with how to carry it, whatever. He probably will not look calm and harmless.
This does not change any information that Eli would have seen - some guy coming out of bathroom with an AR-15 rifle.