Tim Elfrink is a supervising editor for the CNN Investigates.

Elfrink joined CNN after six years at The Washington Post, where he edited investigations and narrative stories on the National Desk. As an editor, he contributed to two Pulitzer Prize-winning teams. In 2024, he helped edit a series on the AR-15 rifle that won the Pulitzer for National Reporting. The next year, he worked on coverage of the attempted assassination of President Trump in Butler, Pa., that was honored with the Pulitzer for Breaking News.

Prior to joining the Post in 2018, Elfrink spent a decade as a writer and editor at Miami New Times, a South Florida alternative weekly. In 2013, he published an investigation into an underground steroid clinic that sparked Major League Baseball’s Biogenesis scandal. Elfrink’s work led to a federal criminal conviction for the clinic’s owner and 14 lengthy MLB suspensions, including a record 162-game ban for Yankees star Alex Rodriguez. The project was honored with a George Polk Award and as a finalist for the Goldsmith Prize for Investigative Reporting. He co-authored a book on the scandal, “Blood Sport: A-Rod and the Quest to End Baseball’s Steroid Era.”

Elfrink graduated with a journalism degree from the University of Missouri and is based in Washington, DC.