this (first pic response from Montgomery County PD ) is real, it bolsters the thesis being floated re: 'another guy, called in confessed, and is working with investigators'.
It didn't seem all that plausible to me that someone would call in and take credit - but since there's no prosecutable crime, the guy isn't in danger of prosecution.
It also favors the idea in pic 2 (Mitchell questioning tactic)
these threads move fast so I don't know if this has already been pointed ou