Transcript for Football Mystery: Police Investigate High School Football Injuries
And California now and the mystery on the football field so many parents fear this could happen to their own children when they had back to the school. Two high school teammates suffering brain injuries in the same game but this evening no one is sure exactly how this happened here's ABC's Kate it would work. Tonight's fifteen year old brown is fighting for his life and teammate Justin Schwarz is recovering from traumatic brain injuries. After what was described as a routine football game he just wasn't looking IE is. It looks like he's exhaust it round collapsed after the game five days ago. And required emergency brain surgery. As family telling ABC news the bleeding was caused by a high impact bloated ahead Schwartz was treated for severe concussion and released. But authorities are raising new questions tonight. Thorough investigation. Is underway. To discern ascertain exactly what happened. Include a review game footage and other off field. Factors. Police say the off the field factors include the a rats of a high school classmate accused of distributing the stimulant. At a raw. Rumor that we have heard about general. And oh. Police say they have not established a connection between the suspect and a football team but by adding at a vault to the official investigation. It's adding new questions about how the drug might affect athletic performance. Still there's no evidence either actually took the stimulant right now school officials are combing through games what is secede they can pinpoint the moment the boys were injured. Also David Nick's parents saying he is responding to sounds stimuli. That's good news Kane and thank you.
This transcript has been automatically generated and may not be 100% accurate.