S.A. Cosby was a big winner at the International Thriller Writers’ Thriller Awards, announced Sunday at the Thrillerfest convention in New York, taking home two prizes for his novel Razorblade Tears.

Cosby won the awards for best hardcover novel and, along with narrator Adam Lazarre-White, best audiobook. Cosby’s book, published last year by Flatiron, was previously a nominee for an Edgar Award; a critic for Kirkus gave it a starred review, calling it “a bloody good yarn.”

Cosby won the best hardcover novel award from the ITW last year, for his novel Blacktop Wasteland.

Sri Lankan author Amanda Jayatissa won the prize for best first novel for My Sweet Girl, while Jess Lourey took home the best paperback original novel award for Bloodline.

Courtney Summers was named the winner in the best young adult novel category for The Project, and E.J. Findorff won the best e-book original novel prize for Blood Parish. Scott Loring Sanders won in the short story category for “The Lemonade Stand.”

Authors Frederick Forsyth and Diana Gabaldon were honored at the ceremony as this year’s “ThrillerMasters.”

The ITW Thriller Awards were first given out in 2007. Past winners have included Jeffery Deaver for The Broken Window, Megan Abbott for The Fever, and Riley Sager for Final Girls.

Michael Schaub, a journalist and regular contributor to NPR, lives near Austin, Texas.