In 1843 a second party of colonists, commanded by Don Jose Tomas Salazar, arrived at La Politana. Among the settlers of this second colony were Louis Rubidoux and Christobal Slover, both married to Mexican women. In 1845, the Salazar colonists too moved to the Santa Ana River, one mile northeast of La Placita and there founded the village known as Agua Mansa. To replace the New Mexicans as guardians of their herds, the Lugos brought Mountain Cahuilla tribesmen under their leader, Juan Antonio, to settle in Politana. They remained there until 1851, when they killed all but one of the Irving Gang in San Timoteo Canyon. These were American brigands that had raided the Ranchos in the valley and were hunted down on orders of the local justice of the peace. Due to the ill feeling among the American population resulting from this incident, shortly afterward the Cahilla moved east to a new rancheria at Saahatpa in the San Gorgonio Pass near Banning, California.: