10-71 (Advise Nature of Fire), 18-37. Are you en route to back me on this? 10-23 (Arrived At Scene). We are 10-43 (Information) when I got here. That male had already left. They said he walked around the north side of the building. I'm going to try to locate him. They want him trespassed. Said he's been in and out of both doors for about the last hour, trying to cause problems.