(WTTW News)

In “A Few Days of Trouble: Revelations on the Journey to Justice for My Cousin and Best Friend, Emmett Till,” the Rev. Wheeler Parker Jr. gives a firsthand account of those terrible days.

After the abduction and lynching of her son in 1955, Till-Mobley became a teacher and civil rights activist. Now her life and influence are the focus of a new limited series. (Courtesy  Chicago Sun-Times Collection, Chicago History Museum)
After the abduction and lynching of her son in 1955, Mamie Till-Mobley became a teacher and civil rights activist. Now her life and influence are the focus of a new limited series.
In this Feb 24, 2006, file photo, Deborah Watts, left, and Ollie Gordon, right, both cousins of Emmett Till, accompany Principal Mary Rogers as they walk through a hallway at Emmett Louis Till Math & Science Academy, in Chicago, honoring the 14-year-old former student. Till's lynching galvanized the civil rights movement. (AP Photo / M. Spencer Green, File)

The murders of Emmett Till and George Floyd were separated by more than six decades, contrasting circumstances and countless protests, but their families say they feel an intimate connection in their grief and what comes next.