I was walking back from doing some work at school and three blocks of Columbia Rd. were taped off. This was very strange because Columbia Rd. is a large traffic artery, even at night. I took an alley to the blocked-off section of street. At the center of the activities were about six police cars, two buses, and a fire truck. I couldn't smell fire. I saw two firemen helping a woman who could barely walk, down some steps and to her walker. She was getting on one of the buses, which I then realized were full of old people. I looked across the street down Ontario St. and saw what looked like utilities workers. Maybe a gas leak. I was too hungry to stop and ask.