SACRAMENTO, Calif. — Placer County, California, prosecutors for the first time have filed murder charges against a defendant accused of selling the synthetic opioid fentanyl to a person who later died. Carson David Schewe, 20, faces charges of murder and possession of a controlled substance for sale in connection with the victim’s death, the Placer County District Attorney’s Office announced in a news release Tuesday afternoon. Prosecutors did not release the name or age of the person who died after consuming the fentanyl. Schewe appeared in Placer Superior Court Tuesday afternoon. His arraign…