Washington Post- By Shannon Osaka, Erin Patrick O'Connor and John Muyskens
Published Sept. 6 at 6:00 a.m.

Photography by Caitlin O’Hara; portraits by Adriana Zehbrauskas.
Historic heat waves and the impact on a city's most vulnerable residents. John Muyskens maps out Stephan Goodwin's last movements in his final hours.