Maybe the guard was delusional and thought he heard this, but prepared to kill anything that looks, sounds,,,,,

Not being reported here in the English version of yNet, but the Hebrew version states that 10 shots were fired and hit the suspect. It's evident from the picture above showing investigators marking where each shell fell. Although the picture doesn't show where the first cartridge fell, we can see the shot was taken from some distance. The question is why 10 shots? (He was probably down after the first 2-3 shots) And why were the last 3 shots fired within a 1 meter distance? More questions than answers.

10 gun shot ! it’s a Murder ..Not an act of defense or a security trained guard action

28 he is said to be homeless guy so i dont think he priority was religion, 29 experince shape opinions i agree but experinces should not be prejudice and steoretype, this homeless guy was killed in vain, the reason i said he didint even see victim while shooting is because they heard 8-9 shots, this is sign of panic and person goes down after 2-3 shots so first ones has to be from somwhere he couldnt see i am guesssing just around the corner what kind of paronoia would make one think a guy wants to blow up a toilet is another question without a doubt the guard wasnt good choice for the job

praising God in the "wrong" language

Allah isn't God. If he exists he is a different entity. People who worship God don't need to punish those who might insult him through things like cartoons or teddy bears. They know that God can handle it. Allah seems to need help.