I thought for the longest time that he utilized a child to gain a visual on the access code to the garage the night of the backyard chocolate bunny picnic. In which case he'd have been in the garage already, waiting for her.
But I don't think it would have been any too hard to lurk in the treeline until he heard the garage door opening, then dart inside, wait for it to close, then ambush her.
I've wondered about the blood on the trash can lid. Three theories:
1. Cast off
2. He needed trash bags and towels. Looked in the trash can to see if there was anything in there he could use.
3. He'd hidden behind the trash can initially, so after killing her, he pushed it back into place.
I think JFd's purse was in the mudroom doorways not because that's as far as she got in (when she returned from the school drop off), but rather, that's where she left it on her way out (on her way to drop the children at school). Left her tea and breakfast, left showering and dressing, left her purse by the door -- because she'd only be gone a minute --
Meanwhile, FD was pedaling like a mad man toward 69 Welles... with zip ties and heavy tape.
As JFd was making the circuit to take her children to school, off in Farmington, Inmate #433612 was taking her child to school too, fully aware where FD was going and why.
Sickening.