On April 13, 2021, Rich Lee got the phone call he says he'll never forget."It's shattering. Just shattering," he said, speaking with KCRA 3 through a Zoom call from his home in San Francisco. "It's the worst thing anyone can go through."His son, 23-year-old Jake Lee of Davis, was gone. Rich learned Jake died from fentanyl poisoning. Rich said he believes that his son, who battled depression and anxiety, thought he was taking Percocet, and instead ingested illegally-manufactured fentanyl. "My son was ... incredibly brilliant, incredibly funny," Rich said. "We lost someone who was special, and I think he could have done great things in the world."Photos provided to KCRA 3 from the Yolo County District Attorney's Office compare real pills against fake ones laced with fentanyl. "It's a killer," said Deputy District Attorney Jonathan Raven. "Fentanyl is 50 times more potent than heroin, and 100 times more potent than morphine."Fentanyl is now the number one killer of adults aged 18 to 45 since 2020, according to the Centers for Disease Control and Prevention. Just two milligrams of fentanyl can poison and potentially kill a person, making it the most potent and one of the most dangerous drugs on the market. "The majority of individuals who die from fentanyl poisoning don't know there is fentanyl in their drugs," Raven said.Yolo County has also seen an increase in fentanyl-related deaths since the pandemic. In 2020, Yolo identified eight fentanyl-related deaths. That number went up to at least 14 in 2021. The DA's office said the death count could be higher. Now the county's top cop is working with local agencies to treat every fentanyl overdose or poisoning call as a crime scene. "When they treat it like a crime scene, one of the things they do is interview individuals and develop evidence," Raven said. "So if that person was poisoned by fentanyl, they can try to locate the source."Evidence such as the victim's cell phone could contain information leading to the bad dealer. The DA's Office is planning to take a three-prong approach to address the fentanyl epidemic in Yolo County, which includes education, treatment and enforcement. "If someone is struggling with addiction and they are a small-time dealer and caught in possession, the approach for them would be treatment," Raven said. "We don’t want to necessarily want to take those individuals and sentence them to lengthy jail sentences or state prison."Like other DA offices in the country, Yolo County prosecutors introduced harsher penalties for those dealing drugs this year. When someone is convicted of trafficking drugs during their sentencing hearing, they are advised by the DA's office that a repeat offense could result in prosecution for manslaughter or murder. Rich hopes that by sharing his story, other parents will be encouraged to reach out to their children about the dangers of drug use. "Hammer home to your kid, talk to them about fentanyl," Rich said. "You really could save their lives and other lives possibly."