BBM. I was thinking this! I am so glad you posted so I know I'm not alone already. I think she could have done what was said by CRs attorney, that she dropped him off, MB didn't want to party and was working on a paper (easy enough for LE to check the computer records that night and rule that part about working on a paper in/out). I think JW could have been over at JR's, maybe asking where LS and CR had gone, who knows. Maybe seeing JW at JR's is why LS stopped there after leaving CR/MBs. A confrontation could have happened there, ending either directly in her death (one or both hurt her), or indirectly (heart stopped from stress) and JW and JR had to cover their tracks. I would think evidence would be in one of their vehicles, or they called a friend to see if they could borrow a car (ie DR)! Later of course they tell LE and friends that LS called about her missing phone.