Engine light, but no crank

First thing to check is the battery voltage (should be 12 Volts or more). Are the headlights bright or dim? Dirty battery terminal connections can also cause trouble. You haven't given much information, could be battery, starter, neutral safety switch. etc.

I didn't check the headlights or much else, I was on my lunch break at work. I've had a coworker jump start it and it started, but I won't be leaving work for a little bit still. I'm thinking it's a bad battery.