LOS ANGELES — Hollywood producer David Pearce was slapped with 146 years in prison on Wednesday after drugging two young women, watching them die, and dumping their bodies outside different hospitals. Pearce, 42, was found guilty earlier this year for luring Christy Giles, 24, and Hilda Marcela Cabrales-Arzola, 26, into his apartment in November 2021, plying them…