Vishnu Irigireddy, 48, Tim Nguyen, 63, and Oleksander Martynenko, 36, were killed by the fall. Anton Tselykh, 38, was knocked unconscious. Tselykh awoke in the dark. It had been hours since the fall.

MINNEAPOLIS — Fewer than half of women treated for high-grade cervical dysplasia subsequently received guidance-concordant surveillance, of whom one-third had an abnormal co-test result ...