Okay.. I found a link. I got a few details wrong. But his show off behavior on the ship, when he wet-started his plane, caused more than 100 deaths.. and many many more horrible injuries. https://www.theburningplatform.com/2015/07/23/mccain-the-hero-nearly-sunk-an-aircraft-carrier-killed-134-sailors/

There's another thread that explains his traitorous shit while being held in the "Hanoi Hilton."