I have to wonder. A family that is so worried about security that they have a camera yet they do not alarm the doors. Especially when the area where the boys slept was away from the other bedrooms.
I’m thinking perhaps it was a baby monitor? But the camera postition changes or something, look at the ceiling fan.
Also it appears there are window coverings in the first video but then 2 windows look uncovered in the second.
I suppose the sun could just be so bright but odd the third window still looks covered.