A Camden man has been sentenced to 55 years in prison for gunning down a 21-year-old Philadelphia resident during a botched robbery in 2021, authorities said Tuesday. Antony Shields, 23, was convicted of first-degree felony murder, aggravated manslaughter and second degree conspiracy to commit robbery by a jury on Jan. 30. Shields and Jony Ramos, 24, were accused by authorities of shooting Alex Fernandez during a robbery on the 1700 block of South 7th Street around 2 a.m. on Feb. 4, 2021. Fernandez was shot multiple times and pronounced dead at Cooper University Hospital, according to authorit…