By Matthew Reisen / Journal Staff Writer   Authorities released the names of four men killed in separate incidents over the past few months in Bernalillo County. Gilbert Gallegos, an Albuquerque Police Department spokesman, said the deaths of Francis Pete Jr., 41, and Raymond Aviles, 46, are being investigated as homicides. Bernalillo County Sheriff's Office spokeswoman Angelina Navarro said the agency is investigating the deaths of Ricky Newman, 37, and Guadalupe Nunez, 52, as homicides. No arrests have been reported in any of the cases. Albuquerque police have investigated 83 homicides so far this year and Bernalillo County deputies have...