So much of this story stinks...
The transaction with Cici went down on July 23rd. Therefore, it wasn't resolved for over two weeks. Even allowing for Brad's four-day trip, and your 2-day trip, that's over a week that you had his money - during which time you used some of it to pay a personal bill.
Assuming that wasn't your only sale ever for Brad, there must have been a procedure in place for paying him in less than two weeks, and only after he learned from a customer that you had closed the deal and not paid him.
Basically, in every company I ever worked for, if an employee used company money to pay a personal bill (even if they intended to pay it back), they would be fired.
Then, you were all broke begging for money recently, and now you suddenly have the money to purchase Brad a $1,200 camera?!?
It is my experience that innocent people don't feel a need to buy gifts for someone that has accused them, publicly no less, of being a liar and thief.
ADG