J.J.'s mother says "you're happy up here", but DC is not "up" from East Allegheny, Pennsylvania.
"Up here" and "down here" are just common phrases, not geographical positions.
"Up here" and "down here" are just common phrases, not geographical positions.
The characters repeatedly pronounce ASMR as "azmer," but it is simply called "ASMR", the acronym isn't a word.
The SM57 microphone used by the unsub to record is clearly not plugged in.
One of the main reasons Garcia suggests Arthur Brodie as a suspect is because he owns a white cargo van like the one in the surveillance video. However when the video zooms in it can clearly be seen that the van the abductor was driving is a Ford, whereas the van Brodie owned is a Chevy. Garcia has helped the BAU track down enough vehicles over the years that she should be able to tell the difference between a Ford and a Chevy by looking at them.
When one of the suspects is about to be locked up, Rossi says that if anyone asks him "wherefore art thou", he'll know what to say. In Shakespearean language, "wherefore" doesn't mean "where", it means "why".
At 34:37 Rossi says "Garrett must have hung himself". It should be "hanged".