BUFFALO, NEW YORK - MAY 16: Garnell Whitfield Jr. the son of 86-year-old Ruth Whitfield who was killed during a mass shooting at Tops market speaks during a press conference with attorney Benjamin Crump and members of his extended family by his side on May 16, 2022 in Buffalo, New York. A gunman opened fire at the store on Saturday killing ten people and wounding another three. The attack was believed to be motivated by racial hatred. (Photo by Scott Olson/Getty Images)

WASHINGTON (AP) — The son of an 86-year-old woman killed in the racist Buffalo mass shooting is calling on Congress to act against domestic terrorism. Garnell Whitfield, Jr., whose mother was the oldest of the 10 Buffalo victims, challenged senators at a hearing Tuesday. He told them: “What are you doing? You were elected to protect us.” The emotional testimony came against the backdrop of intensifying Senate negotiations on a gun safety bill. The proposals are gaining traction, but also raising concerns from Democrats and some advocacy groups who are pushing senators to do more, faster, to stem the tide of mass shootings across the nation.