Four senior San Antonio Express-News photojournalists have taken early retirement packages, the daily revealed in a Monday column praising the longtime staffers’ contributions. The departures include Luis Rios, who served as the paper’s photo director for 13 years, along with Jerry Lara, Kin Man Hui and Billy Calzada, each with decades of service at the paper. Express-News brass declined to confirm the departures last month, when rumors of the buyout first circulated.