The death last year of a Johnson County teenager poisoned by fentanyl has led to a congressional effort to make social media companies report illegal drug activity on their platforms. The Cooper Davis Act, introduced Thursday by Republican Sen. Roger Marshall of Kansas, requires communication service providers to work more closely with federal authorities who need data to fight illegal drug sales. Cooper’s parents had told The Star the pill laced with the synthetic opioid that killed their 16-year-old son was purchased by a friend who used Snapchat to hook up with a dealer in Missouri. Cooper and his friends thought they were taking Percocet pills. He was the only one who died. Libby Davis had said she had monitored her son’s Snapchat account and, “I could see drugs being sold on Snapchat, so it’s not hard to find. It’s definitely happening. “People were posting pictures of what they had for sale and how much they cost. And it was people in our area. I know he had routes to dru...