I am so sorry for your pain. I feel the heartbreak as one mom to another. I applaud your strength and know it's hard to walk the tightrope.
If bail is posted and he would be released, is it likely he would agree to long-term rehab or, instead, would being released only present an opportunity for him to run back to what he was doing before incarceration?
Are there opportunities for help while in jail? Mental health, etc.? I imagine the prison staff would take intention to commit suicide seriously and take necessary steps to help.
I am praying for you and your son.