<human>: Can you summarize the given text in a few sentences?

Back story: My dad has had a really rough life, he watched his father kill himself when he was a teen, and he never really recovered.  He has always had a substance abuse problem and has been in and out of rehab several times. Most recently,  his wife (my step mom) of 20 years left him for another man, but started seeing my dad on the side again, and then died suddenly about a year ago from a stroke. Her family completely cut us out of everything-a last chance to visit her braindead body, funeral, obituary, any information. ..and it has been hard for on him. He lost his job, started drinking more, and is barely clinging to the house. His mother is dead and his brother is a jerk who is too busy being a "devout Christian" to answer my dad's phone calls. I am his only family, and have been trying to get him to move to my state so I can take care of him, as I am his only family, however he is having a hard time acquiring a Texas death certificate for my step mom, as the house was in both of their names.

Yesterday, his friend called me to let me know he has been in jail since 2/19 on  DUI charge. In his mug shot his face is bloodied and puffy and I know he was probably belligerent at the time of his arrest. He a very funny and sweet guy most of the time, and very frail from a year of drinking, not eating much, and being very sedentary.  I am very worried about his mental health now, as well as if/when he is released after his court date in mid-march. I want to help break this cycle,  and get my dad back. The jail said I could send postcards, but is there something else that I can do to make his time in jail easier? How do I get him help when he is released? Are there resources in Florida I may not know about?

I know this is a vague plea for help, but I am looking for any advice from someone who has been in a similar situation.
<bot>: Dad is sad, now in jail. I am the only person he has left, and I am 3000 miles away and have very limited resources.