Marcus Freiberger, a popular Phoenix yoga instructor, went missing in February this year on his way to a blind date, and his body was found about a month later in a rock quarry in the Phoenix area. At this writing,

I really want to get the word out that his truck is still missing,” Marcus Freiberger's childhood friend Amber Cranford tells PEOPLE.

Freiberger was last seen at a parking lot on February 21, where he was allegedly supposed to meet someone for a blind date. It's unclear whether he actually met up with anyone. Per family and friends, he had been teaching classes at Melrose Yoga in Phoenix for several months and was popular among clients.