Got this same exact text but from this number (916) 758-7637. As soon as i saw it I knew it felt shady I googles the name and it let me to this forum. It looks like this scammer has been at it for a while.
"I am Col. Steven James of the U.S. Marines,Am currently on duty and am buying the camera for my son that study abroad as a surprise gift, your price is OK and i will add $80 for shipping. I hope you understand my situation and get back to me now with your PayPal account email for an instant payment"
Number is (714)874-8714
He is trying to buy a camera from Portland, Oregon Craiglist.