<human>: Give me a shortened version of the text

I overheard my mom talking about what recently happened to my friend, Jack. His brother would make Jack do chores like clean his room, do the dishes, etc. and if he didn't, his brother, Mike, would beat him. His brother would always drag Jack from his room at like 3 in the morning when their mom was sleeping, and drag him to the living room and hit him. The only way their mom found out was because she woke up to the sound of him hitting Jack. 

This all happened after the divorce between their parents around a year ago. After the divorce their mom completely when crazy on a midlife crisis thing and she almost never really paid that much attention to her sons. Jack was almost completely alone during this, because both his parents really couldn't give a shit about him.

He's okay, for now. He's at his dad's place, and his dad even apologized to him for neglecting him. There's no legal action that his parents are going to take against Mike though, and Mike's literally going to be living in a different apartment for FREE away from his brother, because of bullshit like "he's his brother, he's family, blah blah blah" This all happned super recently, so everyone is just shocked. I mean, I went on family vacations with them, and I borrowed Mike's magazines all the time, and Mike taught all of us how to play video games, and everyone used to be happy and ok until it all went to shit. 

I'm not even supposed to know this. How can I help my friend during this time? I don't go to the same school as Jack, so I can only talk to him when we play league or we have family gatherings. I haven't really played with Jack for a while though, because he didn't really go on league for a while, probably because his shit brother was fucking beating him. I'm just so heartbroken, how can I help him?
<bot>: My best friend was getting abused by his older brother, and now we all found out. I'm not supposed to know, how can i help him?