 That's ABC's Janice Yu. Four people were killed and ten were hurt. And a former Northeastern University lab manager convicted of staging a hoax explosion at the school's Boston campus, then lying to a federal agent about what happened. Jason Duhaime faces up to 15 years in prison. He'll be sentenced in October. I'm Brian Clark, ABC News. You can host the best backyard barbecue. When you find a professional on Angie to make your backyard the best around.