Fri.the 13th

Ok so today started out good and so far so good,however a few nights ago wasn't all too good.About 9:00 I was typing on my com.when I heard what sounded like someone knocking on another person's apt.door.Anyway before I knew it this knocking was getting strong and louder not to mention 20 min.had went by,so I decided to get up and look out my window,I saw about 5 or 6 police standing all around with there hands on they're holsters,nothing big happened though!