 They let the Earps know they could expect retaliation.While Wyatt and Virgil were in Tucson for the federal hearing on the charges against Stilwell and Spence, Cowboy Frank McLaury confronted Morgan Earp, Spence and Stilwell being friends of McLaury and his brother Tom.He told Morgan that the McLaurys would kill the Earps if they tried to arrest Spence, Stilwell, or the McLaurys again.