VIDEO: The recovery of some residents’ belongings just before the controlled burn that destroyed their apartment building here Thursday offered the first piece of good news since an explosion in one of the apartments on March 5 killed a man who was allegedly making bombs. But it was hard to find anybody speaking in an optimistic tone. Beaver Dam Fire Chief Alan Mannel used the word “bittersweet” to describe the planned inferno that reached 1,600 degrees and turned the two-story building at 109 Knaup Drive into a heap of burning cinders in less than three hours.