Did Martin Luther express his views on suicide?

In the 2003 movie *Luther *, there is a scene where, while still a monk, Martin Luther comes across a man who has hanged himself. The townspeople are treating the suicide with horror and disdain, believing him to be damned. But Luther says that the man is not responsible for "the demons in his mind" or something to that effect and personally chooses to bury the man as a reputable Christian would be. In real life, did Luther ever express his views on suicide? And if so, is there any evidence that he expressed them while he was a monk, as he did in the movie?