A 32-year-old man triggered a large police operation in Bremen's Vahr district. As officers reported on Wednesday, the man, in a state of mental distress on Tuesday, first threatened his roommates with scissors and then barricaded himself in the bathroom of their apartment on Otto-Braun-Straße. Around 2:00 p.m., a 26-year-old resident called the emergency services after the 32-year-old threatened him with the scissors and stated his intention to…