Coat, deep left front pocket,, she has her hand in there in one pic and a bulge in the other pic.. a money packet is 0.5" thick.
I don't think that any of the crew was "involved" in the hijacking.
I am just exploring a theory,,, that Tina didn't return the money to Cooper and kept it, she or somebody close to her discarded it into the Columbia R around 1978/79 when she resided several miles upstream of TBAR.. money washed up on TBAR. There would have been nothing wrong with taking the money from Cooper, it has happened in other hijackings.. but it was returned. Maybe, it just never came up..
Everyone just accepted Tina's story about returning the money, to me it sounds sketchy. Only two people know the truth, Cooper and Tina. Today, the FBI would never just accept that story.. back then they put Tina on a pedestal and used her testimony to guide the case, big mistake if she was compromised.
BTW: I am super excited to have resolved a 45 year old mystery, not Cooper but another case I have been working on. The affected parties are trying to find an equitable resolution.. At some point it will probably make the news. This one is really cool...