Detective Wolf and the Flatwoods Fighter

"....there was a second painting. You wanted to replace the first one, right, to hide your hand. I investigated that one, and found that it was made to trigger an explosive in the wall upon someone fixing the frame. It an old WW2 tactic, and something that would not be difficult for an engineer like you to replicate. You also had a history of stalking Ms. Kenwood. You obviously wanted to get rid of the middle man, you need help, but now, all youre getting is the chair."