Rescue officials arrive at the scene to assess the damage of Tuesday afternoon's dramatic collapse. The New York City street where a parking garage collapsed, killing one person and resulting in five others pulled from the structure, remained closed a day later Wednesday, as investigators have yet to disclose the suspected cause behind the building reportedly with four active violations suddenly caving in by Lower Manhattan's Financial District. At a press conference Tuesday, NYC Department of Buildings Acting Commissioner Kazimir Vilenchik described how drone footage showed how the four-story building on Ann Street, between Nassau Street and William Street, "all the way pancaked, collapsed all the way to the cellar floor." He acknowledged that an active violation on the building dated to 2003. The buildings commissioner said an application was filed in 2010 but did not indicate whether the violation was corrected.

Editor's Note: At Google Research, we're interested in exploring how technology can help improve people's daily lives and experiences. So it's been an incredible opportunity to work with Thomas Panek, avid runner and President & CEO of Guiding Eyes for the Blind, to apply computer vision for something important in his everyday life: independent exercise. Project Guideline is an early-stage research project that leverages on-device machine learning to allow Thomas to use a phone, headphones and a guideline painted on the ground to run independently. Below, Thomas shares why he collaborated with us on this research project, and what the journey has been like for him. I've always loved to run.