I Dreamt Of A School Shooting

I had a really sad dream that actually made me cry when I woke up. My dream was that I was at my university, and they were having a festival of some sort and all the students and staff were in attendance. I was with my two best guy friends, and we were walking through this gift shop area where I decided to try to call my husband to let him know we were waiting for him. I told my guy friends to start walking ahead of me and I would catch up to them when my phone call was done, but the phone kept ringing and he never picked up. Suddenly, I heard a gut-wretching scream and then multiple gun shots and looked behind me to see people running away from a man in a long black trench coat holding a huge semi-automatic rifle. I could feel the guns vibrations in my body while hearing the "flop" noise of bodies falling on the ground. The fear in me had me pinned the ground until I finally started running into a back room and found a couple people hiding back there. I asked them if anyone had seen my two best friends, but no one had seen them. I could still hear the shooting outside as it slowly grew louder towards the door. I told everyone to either run to another room or hide in the cabinets of this room we were in. I found a tiny cabinet that I could barely fit into to hide, where I took out my phone and kept dialing 911. The operator told me that the police would not save us because it was too dangerous for them. I kept texting my guy friends to see if they made it out safely or were hiding in a safe place - they never answered. In the meantime, I kept texting and calling my husband to try to warn him to not enter the building or at least run out if he was inside - he never answered. Finally, the gun shots ceased and someone knocked on my cabinet door to let me know the police came in and killed the shooter. When I got out of my cabinet, a guy I don't know looked me in the eyes and told me they found my guy friends, but they didn't survive. I didn't believe them so I ran from room to room until I finally found them.. on the ground, holding hands... dead. All my Korean friends were dead. All my classmates that I had been in classes since freshman year were all dead on the ground around me. I started screaming and wailing. I knew I had to look for my husband. I begged every single person that passed me whether they saw my husband or not - no one did. I called him over and over, and he still never answered. I never found him.