As FBI investigators sought to clarify the motive behind Wednesday’s brazen shooting attack on congressional Republicans during practice for a charity baseball game in Virginia, key voices in Connecticut’s gun-control debate sounded off Thursday, while the U.S. Supreme Court was scheduled to confer over a challenge to concealed-carry restrictions in California.

Outgoing Connecticut Bar Association President Monte Frank, newly appointed to the American Bar Association’s Gun Violence Advisory Committee, expressed exasperation and outrage over the attack by a lone assailant armed with a semi-automatic rifle and pistol.