If he went to the gym on 12mile and Stephenson, that's only 3 min from the house. I know his mom said he goes to a different gym. Also the phone couldve been ditched during the night when BF was riding around looking . Wonder where the phone was when the imessage was received . Is there any way...
Using Google Maps and public information search, I put pins at the home, Hollywood Markets and 12th and Stephenson (location where phone last pinged). The phone's last ping is not the direction of the market, however there is a gym there at 12 mile Rd and Stephenson.