The Phoenix Police Department has requested a silver alert for 77-year-old Gilberto Lopez Islava. Gilberto is 5 feet, 4 inches tall and weighs 172 pounds. He has white hair and gray eyes. Gilberto was last seen wearing a gray v-neck shirt, navy jacket, blue jeans, and a tan Diamondbacks baseball hat. He was last seen on foot in the area of 6500 W. Fillmore Street on January 27, 2024, at 0400 hours. Gilberto suffers from a medical condition that leads occasionally to confusion.