Who Knows Where Sky Metalwala May Be?

Quick refresher on who Sky Metalwala is. He is a 2-year-old boy who went missing back in November of 2011...well, maybe. I'll get to the maybe later. The circumstances around his disappearance are so suspicious I don't even get how his mother is not in jail. So what happened, according to mummy Julia Biryukova, is that she was driving to the hospital to take sick Sky to the hospital, also in the car was Sky's older sister, Maile. On the way there, still according to Julia, the car ran out of gas so mother left Sky in the car strapped in to his car seat and took older sis to a gas station a mile down the road to get gas and call a friend. When she returned an hour or so later, Sky was gone.

Julia Biryukova: Candidate For Worst Mom Ever

 That story has been blown to shit by investigators who say there was no gas can at the scene, there was still gas in the car, enough to drive a considerable distance and when they test drove the car there were no problems and it ran fine. It should be noted that Julia has a history of mental illness, having been hospitalized pretty much against her will because she is fucked in the head on a serious level. She wouldn't allow food in the home, cleaned obsessively for hours, neglecting the children and leaving them alone for hours on end. She is not cooperating with police in the search for missing Sky.

Solomon Metalwala: Father Fighting to Find His Son

 Sky's father, Solomon Metalwala now has custody of older sister Maile, Julia didn't even show up for the hearing. I don't think she cares either way if she has custody or not since she apparently doesn't give two shits that her son is gone, but it's possible she knows where he is and he may be alive and well...in the Ukraine, with her father. Reports say Sky was last seen by someone other than his mother October 2011, newer reports say he may not have been seen since May. No one's really sure because she's not talking, but reports say her father came to visit back in around April and it's possible he took Sky with him when he left.
There are more questions in this case than answers and there's new ones everyday. Why hadn't his father seen him? If Julia's father took him back to his native country, why can't they check airline records? Why can't they arrest Julia at least on child endangerment and neglect? Why the fuck did this psycho of a mother have custody of these kids at all when she has this fucked up history?
Solomon Metalwala may not be a perfect parent, but he seems to be desperate to find his son and he fought to get his daughter back and out of foster care so I think Julia only had custody to stick it to him. He's out there, he's trying to keep Sky's face and name out there so he can some day get him back and I hope he does. I hope that kid is still alive and his idiot mother didn't do something to him or that some strange didn't snatch him from the car.
I don't understand why Julia can't at least be charged with neglect, maybe haul her in and get her talking. It's so unreal that a mother would hide away from the public, refuse to talk cooperate and try to toss blame at the father. These aren't the actions of a loving, caring, innocent mother who wants her child back.
So what do you think, people? Got any theories or alternate endings for this totally insane case where the life of a beautiful little boy hangs in the balance?