Lights flashing on 1993 Mitsubishi 3000GT

The lights in my car keep flashing with no key in ignition and car won't start.

Asked by for the 1993 Mitsubishi 3000GT
Sounds like the theft-deterrent system is activated. You may need to tow the car to an auto electric shop or a Mitsu specialist for help.
Here's a directory link for you:
You were right, someone had installed an alarm switch and my daughter flipped the switch when she got out of the car!!!! Thank you