QUOTE(mALX @ Jan 13 2019, 01:56 PM)

Right? Like = who is going to let Benny escape when he
is wearing that awesome checkered suit they can get for killing him? ... is the one who shot you in the head at the beginning of the game?
Okay, if I am not mistaken; that is a kind of sniper tower located south of that non-quest related ghoul workshop in the basement of a house.
When you near the tower there is someone shooting from the top; but when you kill them you still get the warning that the area is not cleared; so you go into the base of the man-made tower and find a bed with a Raider sleeping in it (that instantly jumps up and attacks you). It didn't produce a map marker for me to return to it.
Nope.
QUOTE(Lopov @ Jan 13 2019, 02:43 PM)

Well it's not just that you let him escape, he can also trick you and then escape. Happened on my first playthrough.

My character agreed to meet him in the Presidential Suite, but of course he wasn't there, instead he sent his goons after my toon. In case of Joe Burg, he was tricked by Benny too.
As for Medusa's location - I don't know.
I had no idea. My characters have either sneaked up to his room and killed him, or convinced his second in command that he needs to be killed, in which case he gives you Benny's room key. Or just gone on a killing spree in the casino and killed him and all his goons.
I suppose a hint is in order for the pic. It is in a shack above a big pond of radioactive ooze. The ghoul doctor lives there.