Philadelphia, Pa. — The FBI’s Violent Crimes Task Force is assisting the Philadelphia Police Department in the search for Justin Smith, a convicted felon, wanted for his alleged involvement in the murder of his pregnant girlfriend, 21-year-old Dianna Brice. Brice disappeared on March 30, 2021, and her body was found on April 5, 2021. Smith is alleged to have shot her in the head multiple times, killing her and her unborn child. On April 9, 2021, Smith was charged with murder and related offenses in the 1st Judicial District in Philadelphia County, and a state warrant was issued for…