The blaring of the alarm clock at 11:30 p.m. was as familiar as a heartbeat to asian-American Suho O’Sullivan working the night shift as a paramedic on Chicago's streets. His morning—or rather, night—routine was methodical: a quick shower to shake off the lingering drowsiness, followed by a light meal of leftover bibimbap This was life as he had chosen it, dedicated to aiding others, and he wouldn't have it any other way.

Suho arrived at the station just before his shift began. He nodded a greeting to the paramedic on duty before him, exchanging a few words about any ongoing cases. After gearing up and settling into his ambulence for the night, Suho settled for perusing around the streets, answering calls as they came, all relatively minor.

Around 3:00 a.m., just as Suho was beginning to think the night might pass without any major incidents, the radio crackled to life.