Adela Guzman-Mendoza, 45, disappeared on the morning of September 20, 2010 after leaving her shift at the Mountain Oyster Club in Tucson. Thirty minutes into work she told her employer she felt ill and left to catch her usual two-bus commute home. Authorities confirmed she boarded the first bus, but what happened after that is unknown.

Neither bus had working video that day. The only electronic trace is a final cell phone ping near the intersection of Curtis and Kain, about a quarter of a mile from her home. Family members say she was close to church, friends and relatives, was expecting her first grandchild, and would not have walked away voluntarily. She had diabetes and other conditions and did not have her medications; there has been no bank or prescription activity since she vanished.

What can readers who lived in that neighborhood or who rode those routes on September 20, 2010 add about Adela’s last movements?