Please pray for my brother

Hello y'all. My brother needs prayers. His girlfriend left him, which is a good thing but she took his son with her and will not let him see him. My brother's name is Tom; he is devastated and even attempted to take his life because of it. We as a family have rallied around him. She had severed his ties with us because she did not like the bond we all share. She has threatened him several times about taking the baby and never letting him see the baby again. Well two days ago they had a big fight because my mom called him to tell him he needed to call my sister because my brother in law is having some heart problems and will need an ablation procedure,( he could use prayer to his name is Mike). Any how his girlfriend caused a big fight and when he went to the store accused him of having an affair which he is not and left. Tom has not seen his son Tyler for two days. He actually got a call from her phone yesterday and it was the baby who must have just hit the call back button and he heard Tyler saying "dad, dad, dad"; then she took the phone and hung up.
My brother is a sweet kind hearted man who wears his heart on his sleeve and this woman has really done a job on him. I will not get into the whole long story but she is just not good for him. That does not mean he should not be able to see his son. Tom is a good man and he loves Tyler with all his heart. He has been the care taker for Tyler since he was born because the girlfriend worked and did not want Tom to. (I know it sounds crazy but it is true. He has been house husband since he quit his job because she accused him of sleeping with his coworkers.)(It is very Jerry Springerish! I know believe me!).
All I am asking is for prayers for my brother Tom for his salvation. I plan to talk to him about the Lord, I have in the past and want to again. Please pray that this is his low and he will allow Jesus into his heart and let Him fight the battles with the girlfriend and give him back his son.
Thank you Becky