My kids pranked their step brother

I have two boys who are 16 and 17. I also have a step son and step daughter. My step son is 15 almost 16. My step daughter is 9. Me and my husband had to drive to pick my step daughter up from her mother's house and we ended up staying in a hotel. We send the boys money for pizza and thought they would be fine. We wake up and each have like 80 calls from my step son. My boys pulled a prank on him and locked him out the house all night. They asked him to take out the trash and locked him out. My husband was furious and I told him he needed to calm down before we got home. Well he didn't and he yelled at my son's and called them childish and said he was taking away all their game stations. I said no hes not. I paid for that. He doesn't get to take away things I paid for. I also told him he needs to calm down. It's a prank. Siblings prank each other. But he's not happy and my step son obviously wasn't happy. He was crying but trust me when I say this boy cries over everything. He could get mud on his brand new shoes and he will cry about it. Obviously what my boys did wasn't kind but it's not like he got hurt. They pulled a stupid prank and I don't understand why my husband is so pissed. He said anything could have happened and yes that's true but nothing happened and honestly nowadays going to a public school is probably more dangerous than being outside all night with all these shootings. My husband is demanding my kids get some type of punishment because he wasn't let back into the house until we called thek and made them which was about 7am. So he was out all night. I think he's being harsh. Again siblings prank each other. My boys clearly weren't wanting to harm him. Had it been my step daughter that would be more understanding but I can't understand why we can't write this off as a stupid prank and move on

@Katie they're teenagers. Their brains aren't even close to being fully developed. Teenagers are impulsive and do dumb things.

Edit: The reason me and my husband didn't answer was because both our phones were on vibrate and we forgot to turn them back on. We took her to see Barbie since we had nothing else to do and never turned the back on to sound. I totally understand what my boys did was wrong but they're teenagers. Their brains aren't fully developed until 25.