By mid-July Kane had reached Fort Walla Walla where he made a minor detour to visit the Whitman Mission that a few months later would be the site of the Whitman massacre . He went with Marcus Whitman to visit the Cayuse living in the area and happened to draw a portrait of Tomahas ( Kane gives the name as " To-ma-kus " ) , the man who would later be named as Whitman 's murderer . According to Kane 's travel report , the relations between the Cayuse and the settlers at the mission were already strained by the time of his visit in July
Whitman massacre
Whitman massacre
Paul Kane