I am very depressed ,I want to die but cant?

I know a lot of people are in worst shap than me but I need an end this the pain that I am in,,I have lost my son and wife.they are my lifes blood.without them what reason should I go on.my wife is living on the street and my son is with my wifes uncle.they say I molested him but i didnt and my inlaws are from hell .where do I go from here if i cant have my son or my wife back.my life is **** without them.what would you do if you couldnt have what counts the most .