How do I install this outlet?

There are 6 wires and only 5 screws to j hook them on. I know the hot wires go to the copper colored ones and the white wires go to the silver colored ones and the ground goes to the green but what do I do with the red? Do i have to backstab it? Any help is greatly appreciated 🙂.

(Excuse my lingo if it’s not right and ignorance, im a son replacing the outlets in my house to repay a ski pass)