taking college friends hostage

i had a dream that i took alot of my friends and the people around college hostage. I took them up into a skyscraper into a room being guarded with an armed security officer and knocked him out, stealing his gun moved them inside. It wasnt my fault that i took them hostage, and it isnt wat i wanted to do but i didnt know why i was doin it. only one person understood it wasnt what i wanted and tried to help me, (someone who sits next 2 me in a lesson and dont know that well). The only other things i remember is that i asked 2 use this girls phone (again dnt know that well, sit next to in a class) but ended up never using it. Then i shot one of my friends three times in the chest, who then died, after the situation was resolved (again dont know how it was solved... just kind of jumped) and i stabbed another friend with a knife i didnt know i had, but he didnt die, and only had some slashes on his stomach that werent fatal, or even that deep even through i stabbed him pretty hard