Reddit user walterwhitmanwhite reports:
This is in an all-suite corporate hotel in a business plaza with 24hr security and cameras.
I woke up [during the shooting] of course but was disoriented and thought the people above were doing something dumb at 2am so I went back to sleep. It wasn't until I found the fallen plaster in the morning that I realized what happened. The guests in the two other rooms that got shot did the same thing.
All the bullets must have passed within a couple of feet of me. One might even have hit the side of the bed.
Redditors examining the following photographs concluded the location was a hotel in Phoenix.