Hello sunflower: Sorry about what is happening to you and your child.
If I were you, I'd call the Police ASAP and ask them for advice on what to do since they would most likely direct you to the US Consulate and other agencies and resources that could help you secure yours and your child's RIGHTS in that grim situation. I would also find a marriage counselor to help me figure out what went wrong in my marriage so things like this might not happen again in the future with that or any other partner. I would want to know whatever I need to know in order to PROTECT my child from being damaged by such a hurtful parent.
Good luck,
jim