My thought is this...
If a man went to all the trouble of wearing all black in order to camoflauge himself in the night to watch this house to abduct a child out of said house in the middle of the night. Obviously he is watching the house, 1. sees the lights go out and knows everyone is in bed and waits until he thinks they are sleeping and he waits some more just to be sure.
Now he decideds to go..grabs a cinder block being very careful not to make any noise, ropes it to the screen, again not to make any noise, he has watched the place, doesn't want to wake the adult. Picks the backdoor lock because according to Misty it was locked, has to do this quietly. Intruder dressed in black, flips on kitchen light ( we know the light had to be turned on because in Misty's interview she said she noticed the kitchen light on and that is what led her to the kitchen and she noticed the back door open) makes his way silently (previous occupant said this could not happen due to creaky floors) to room where Misty, Haleigh and JR were asleep. Depending on which story of Misty's....
Intruder then walks into dark bedroom makes out Haleigh, reaches in a bed either with JR or Misty in it and picks up Haleigh. Obviously never waking Haleigh enough that she could alert Misty something was wrong. Could JR have been awakened? Yes and he was scared.
This Intruder then has to make his way carrying Haleigh back out of the creaky floored house carrying a 5 year old child without waking Haleigh up, hand over her mouth? Misty or any neighbors.
The kitchen light on means, why wear black? You flip a kitchen light on, that means neighbors could see in watching you, the Intruder abducting a child in the middle of the night, witnesses in the house if they wake up can identify you. Plus how did he know where the kichen light switch was?
JMO.