It was really warm at the start and for sure the weather impacted some runners.
I bailed at 10k owing to achilles issues and there was a woman who got in the van with heat related issues. Bunch of 2:20 to 2:40 guys also bailed because they could tell it wasn't their day. Bus had lots of bib numbers under 2000, couple guys in the low 100's. They just figured it would be a grind and would save the effort.
Dashboard of the bus said 73 in the parking lot. Would have been no later than 10:45.
Others I traveled with also died from the combination of warmer weather followed by a fairly cold headwind once they hit Boston.
You kind of sound like a p*ssy/French...