Among those charged were Miami police officers Daniel Fernandez, accused of official misconduct and theft, and David Valentin, nailed for official misconduct, theft, and perjury. They allegedly threatened tenants of an Overtown apartment building who were behind on their rent. Also arrested were four members of groups that get money from the city. Two of them were employees of a nonprofit called the Alternative Program: Johnnie Brown and Vincent Cobham; both were program officers. The other non-profit is called Vecinos En Acción; its president is Laura Gonzalez and its treasurer is Fernando Gonzalez. Both groups work with criminals sentenced to court-mandated service. Miami police chief Miguel Exposito alleged the four had falsified paperwork in exchange for hundreds of dollars in bribes. Deputy director of the city's General Services Administration, Alex J. Martinez, was charged with grand theft and official misconduct. He allegedly used city employees to do work on his home and houses belonging to family members. * * * Another Miami cop [Christian Alvarez-Vega] faces federal civil rights charges for allegedly stealing a debit card from a car crash victim and hundreds of dollars from a bank account.