Suspects have been arrested and charged with murder in connection with a fentanyl overdose investigation, according to the Riverside Police Department. Last November, the Riverside P.D.’s Narcotics Unit began investigating the overdose of 35-year-old Christopher Lucia of Riverside after he was taken to a local hospital and tested positive for fentanyl. Lucia never regained consciousness and was pronounced deceased a few days later on Nov. 13.