This fire started Monday, shortly after 5 p.m. in Sunny Brae. A female resident (wearing yellow in the video) said she'd gone to the store for 20 minutes, and when she returned first responders were already on the scene. She had no idea what started the blaze, which gutted the upstairs of the two-story residence. The woman said the upper level housed the main living quarters, including the kitchen. She's lived there since 2001. A fireman on the scene told her that the cause of the fire would remain unknown pending an investigation.