Someone posted online that perhaps the terrorists invaded this guy’s hotel room, killed him, then did the shootings themselves. Who knows. Maybe the Indonesian girlfriend set him up. I don’t know.
“Indonesian girlfriend” -— I’ve heard both Filipino and Indonesian claimed.
Given how well planned things seem to have been—observation cameras mounted in the hall were a very nice touch—your first suggestion does seem something that would need to be ruled out. Unfortunately, I’m not sure that I trust the government to rule it out.