The FBI’s Miami Field Office is aiding the Miami-Dade Police Department in their search for Joshua Ismael Campos. Campos is wanted for the murder of Demetrius Harris Jr. in an apartment building on Southwest 270 Street in Miami, Florida. On July 25, 2021, Campos reportedly exited an apartment armed with a weapon and shot at least 18 rounds at the victim as his girlfriend and 5-year-old son were nearby. “I really need justice; he was my baby, and I raised him; this is so hard,” said Harris’ grandmother, Shirley Harris, at a press conference Wednesday. Read: New Hampshire Hockey Stars Sidney Cap…