The killing of George Floyd has inspired protests across the U.S. and around the world, with crowds evoking the names of other black men and women who have died in police custody — including Freddie Gray. In 2015, Gray was arrested in Baltimore, and put in a police van — shackled but with no seatbelt. At the end of what was later termed a "rough ride," Gray was unconscious and his neck was broken. He died a week later.