Mildviolence

Hey just bought a car with a sr20 redtop engine in it. I am having a issue with the motor shutting off when I shut of the key. The engine and all the dash lights are still on. I tried using kill switch and motor still runs even after switching that off. The only way it shuts off is if I put it in 5th and slowly let out clutch and kill it.

I imagine it is the ignition switch however wondered if anyone else has advice or has seen this problem. Thanks.