Thank you so much, mck16! And thank you to elmomom for the two pics to compare the shirts and everyone else who helped with that!
According to Weather Underground, Colebrook got rain, starting with the 25th
Precipitation on the 25th was 0.03 in, High 75, Low 46
The 26th, the day she was reported missing was 0.20 in, High 75, Low 53
And the 27th, the day that they found the clothes, Precipitation 0.00 in, High 71, Low 51.
Looks kinda drippy to me, but his truck bed could hold water. Who knows. Anyone could have thrown it in there also. Now I am going to sit here and try to speculate and drive myself crazy on how drippy it should be and if the shirt was pulled out of one of those garbage bags....
http://www.wunderground.com/history/airport/KBML/2011/7/6/MonthlyHistory.html#calendar