ARABS are Asians.
But as somebody else said, until the killer or killers are identified, people are only jumping to conclusions.
If there were two separate sites involved, its unlikley one shooter was involved, but not impossible.
You say Asian to an American, he visualizes something vaguely Chinese/Vietnamese/Korean/Japanese.
You say Asian to a person from the UK, he sees Indian Subcontinent and such types.
I don’t think most US folks think of that when they hear the word Asian. Lots of US have trouble telling the difference between Hispanic and Arab, for that matter...more likely to say he was hispanic than Asian for a person who looked like he was from Pakistan or Iraq or Saudi Arabia.
I'll pray for the victms, pray that nothing else happens and wait a few hours for it to get sorted out.