It turns out the ignition box was good. I was in Arkansas so I couldn't help her, she took it to Autozone and it tested good. I'm going over there today to troubleshoot and try to figure out what is keeping it from starting.
As far as my Nephew Al, he's at our house now, we bought some clothes and stuff for him. He seems happy. This is a huge mess. He has a really bad, deep purple bruise on his side that is raised up. It looks like he was hit with something. We asked him how he got it and he said his dad hit him with a big hammer. He has a bunch of other bruises that appeared the next day after we got him. His father has an excuse for every single bruise, including the knot on his head. I don't believe his dad one bit, especially since he was on drugs all day.
The thing that sux though is CPS did not legally place Nathan in our care, John signed him over to us temporarily. He doesn't know that we are gonna try to take custody. This is one hell of a mess. I hope everything works out. The poor kid is covered in bruises.