Carlo Gallopa Mercado, 29, is accused in the deaths of Ilona Flint and Salvatore Belvedere, who were shot at 1:11 a.m. Dec. 24 in the mall parking lot, and Belvedere's older brother, who was Flint's fiance. Gianni Belvedere's body was found in the trunk of his car in Riverside on Jan. 17.