Police maintained barricades and plans for a nighttime curfew as Louisville prepared Saturday for a fourth night of protests after a grand jury declined to charge the officers who shot Breonna Taylor. Early Saturday evening, some protesters were gathering at a downtown park, known as “Injustice Square,” which has hosted demonstrations for more than 120 days over the shooting death of the 26-year-old Black woman in a police raid gone wrong. Protests Friday night were peaceful but police arrested 22 people for curfew violations.