you say they are maniacs..... you beat everything apart from TQ and xhxh. They woulda bet/raised flush draw if they were maniacs.

Turn just seems like someone hit their K.

I bet/call their, maybe bet/fold based on their tendencies earlier in the night with rivered "flush / straights" however TxQx is the only hand I think you have to worry about with a semi-bluff made on the turn by Maniac number 1.

I am guessing you checked and won, or you bet and got c/r by bother of them?

My line is bet/call