I feel like I'm being too harsh but I am so fucking angry

I feel like people are gonna hate on me for how in treating my eldest son but I'm really angry right now.

I allow my 16 year old to use my car. I had to work last night and I said he could use my car to go see friends as long as he's back by curfew and picks up his brother from his friends house. Tell me why I'm getting a call from the police station at 3am while I'm on my shift at the hospital. My 16 year old decided instead of picking up his brother and taking him home that he was gonna take his 13 year old brother to a party. My son promised he didn't give his brother any alcohol but he drifted away from him during the party and my 13 year old got alcohol from someone else. They other kids pulled a joke on my 13 year old by having one of the older boys, probably about my son's age ask my sexual questions then push him in a closet and rip his clothes off but it wasn't to assault him. Just to scare him and my son found his brother on the ground in his underwear crying and accidentally urinating on the floor and everyone was calling him Gayley instead of Bayley and recording him. So my 16 year old got a blanket and wrapped it around him to try and take him home and people were recording and he was yelling at them to stop recording his brother and he just started grabbing people's phones and smashing them and by then one of the neighbors called the cops. The situations with the kids doing that to my 13 year old is being handled but I let my 16 year old have it! I yelled at him asking how dare he take my car and his little brother to a party and asked wtf is wrong with him. He was saying he didn't expect things to go like that. His brother is traumatized now. And I mean really traumatized. He's currently in my bed because what happened scared him so bad he didn't want to sleep alone. My 16 year old started crying saying he would never intentionally endanger him. I told him I don't wanna hear it. He's banned from my car and he's getting a job to help me pay for the 5 iphones he broke. And while I understand the reason he broke them, he nor my 13 year old should have ever been in that position. I asked my 13 year old if he's ok and he says he's fine but he's scared to sleep alone so obviously he's not. I'm just disappointed all the way around. And I worry if I was too harsh because my 16 year old is remorseful. I just am pissed off because I trusted him. I gave him a privilege and he abused it