BBM
Thor, here's where I believe the 42 minutes in question come into play.
At the beginning, when Michelle was first missing, Dale told Michelle's family (and perhaps LE, since he was "cooperating" with them at the beginning) that Michelle had brought the twins to the condo at 4 PM, had stayed about 10 minutes (so until 4:10 PM) and then left. Dale said that he himself left to drive with the twins to his parents' house on Rose right when Michelle left.
But subsequently, the condo neighbor's surveillance camera footage revealed that Michelle's Hummer had arrived at the condo at 3:18 PM, not 4 PM. Dale's attorney, MN, told us that an eyewitness confirmed Dale's arrival at the house on Rose at 4:30 PM.
The mysterious 42 minutes are those from 3:28 PM (which is ten minutes past the confirmed arrival time of Michelle's Hummer at condo) to Michelle's original alleged departure time of 4:10 PM. Remember, Dale supposedly left for Rose Ave. right when Michelle left.
It doesn't take from 3:28 PM to 4:30 PM to drive from the condo to the Rose Ave. house.
I apologize that I am not providing links for the above right now. They have been posted a number of times, but that isn't a valid excuse! I'm just so tired right now--will try to post some later. Or if someone else here has them handy...