I'm,ike you Raisin, I've always thought BJM found Chris Snr first. His door was locked but she knew where a key was kept.In this one Lenny said that BJM discovered Frankie first then Chris then came to his house and got him then called 911 while JM and grandson went to Dana's. I always thought BJM discovered Chris first. Also from what he says the key BJM got was to Frankie's house.
From there she went next door to Frankies home. Door was locked but Frankies son was inside. BJM asked him to open the door.