At 8:43am on October 28th, the fire alarm went off for the second time today. By 8:50am the fire alarm had been switched off, and the fire department was already on scene. I spoke with a fire fighter who was interacting with the panel in the entry way and asked him about the possible cause. He said that this alarm had the same origin as the one that happened earlier this morning, and that it was 'likely a faulty sensor'.