Who committed massacres of prisoners and civilians during the French and Indian Wars?

During the French and Indian Wars, both British and French forces, along with their respective Native American allies, committed massacres against prisoners and civilians. Notable incidents include the British-led attack on the French settlement of Fort William Henry in 1757, where British troops and their Native allies killed many French soldiers and Indigenous allies. Similarly, French forces and their allies executed brutal raids on British settlements, resulting in significant civilian casualties. These acts of violence were fueled by the intense competition for territory and resources in North America.