That also makes sense to me. Also, his facial affect is lot more low-key and non-emotional, and just his face to me is less convincing than hers. But what concerns me more than this vague intuition is that she has a history of raising children - her other two are fine. He's the one for whom this is his first child, and who might somehow snap with the child. Did he ask for nights to get away from the baby's crying?
All that said, I also think it's possible that the police there are just incompetent. It's easier to pressure a woman saying, "You did it! Admit it!" than to go out and investigate the case. I've always felt for people under suspicion because I have a lousy memory and probably couldn't tell you what I did last night, nor would I have others to give me an alibi.
BBM
She has one child and he has one child. And yes, both seem fine. Then they had Lisa together.
But she is most likely the primary caregiver of the children, or at least she was that night. On the particular night in question, she was primary caregiver of three kids.
Two older (one of which wasn't hers) and a sick infant. Household routine may have been disrupted due to JI on the first of working nights. Baby Lisa had been sick for several days hadn't she? So Mommy may have been working on some sleep deprivation, or at least several days of interrupted sleep. She would have had little opportunity to make that up, because she had older kids to care for. All conditions she wouldn't have faced when she only had one little one to care for.
First there was JI leaving to go to work. Two kids to settle, go through bedtime routine and get into bed. And through it all a baby under a year old who doesn't understand wait, or you better mind. And a baby to get into bed.
So did Lisa go right to sleep and stay asleep? According to mother there is no mention of Lisa getting up. But also no way to verify that. I know that a child with a stuffy nose will frequently wake up and cry. Sometimes prolonged crying. But according to mother she diapered, bottled and put the child in bed. Then she checked on Lisa again at 10:30 pm. How was baby sleeping at that time? We don't know. Even Mom hasn't said that I have seen.
Now my DGS at that age had this uncanny trick. When we put him into bed, he slept great for hours. Until everyone else went to bed and the house got quiet. Then he cried. And he wanted up! Happened when he was sick or well.
Kids this age do wake frequently. They lose their binky, they wet diapers and are uncomfortable or they wake and things are different than when they went to bed. It is dark and they are alone. They get scared. If DGS had a stuffy nose, he woke more often.
But we don't really know about that night with Lisa. According to Mom, she took her bottle and got diapered, went to bed and was checked on at 10:30. I just don't know.