Someone who has Starscan? To reset/program key fob (2008 Chrysler 300C)

A friend of mine asked me if i knew anyone and i said i can help by posting it on my car forum so here it is,
Here is what happened.

He stated he drove the car to work no problem what so ever
Went out to go to lunch, put the key in the ignition, all headlight works, so it not battery related

the red anti-theft light is on solid, no blink or turning off.

He does not have a spare key, just one key and i think it got deprogrammed somehow. unlock and lock works on the remote.

hit up BDR5oh He might be able to help. could be as simple as resetting the battery/ECU

Starter relay for sure. Just fixed one a couple months ago. Should be in driver wheel well area

thanks everyone, key got reprogrammed and ecerything was fixed.