Throw it away

After seeing that suspicion blood stain in the armor there's no way that you'll ever be wearing it so you toss it back into the chest and walk away.

After you walk a short ways the tunnel begins to lighten up and you immediately notice three stone doors ahead of you. All of the doors had three things in common: they looked incredibly sturdy, had no handles, and all had two holes in them at mid chest level that seem to be made for tits.

Door one:

A large wooden door, at the foot of the door there seem to be a few stains

Door two:

A large ivory door, at the foot of the door there are many stains

Door three:

A large granite door, there are no stains at the foot of the door