Subscribe | UPI Odd Newsletter Subscribe PALO ALTO, Calif., Oct. 11 (UPI) -- Facebook founder Mark Zuckerberg has purchased the four homes adjacent to his California residence and leased them back to the resident families. The San Jose Mercury News quoted a source with knowledge of the transactions as saying the 29-year-old multibillionaire purchased the Palo Alto homes and leased them back to the families after learning a developer was planning to purchase one of the homes, replace it with a larger house and market the property as being next door to Zuckerberg. Advertisement