Bryson Michael Krissie, 18, is from Dexter, where he served as a volunteer junior firefighter for Dexter Rural Fire Department.
"It seemed like the first time in his life he really connected with something that he wanted to do," said Dexter Rural Fire Chief Guy Harshbarger.
"The young man didn't even get to ... hardly even start his life," said Harshbarger.
Krissie had been living in Eugene, where he attended Lane Community College part-time.
Krissie was walking eastbound on 30th Avenue just west of LCC near Gonyea Street when he was struck from behind by an unidentified pickup.
The driver of the pickup fled the scene.
A witness traveling westbound told state police that the pickup was driving erratically before striking the victim, and that the suspect vehicle continued eastbound from the scene without stopping.
"In cases where you've got very little evidence, it can take a long time to bring parties responsible to justice," said Oregon State Police Master Sergeant Lang Hinkle.
Hinkle said it's too early to know if speed or alcohol played a factor in the crash.
Krissie was taken by ambulance to Sacred Heart Medical Center at RiverBend, where he died around 12:30 a.m. Thursday.
The suspect vehicle is described as a dark colored late 1990s to early 2000 Chevrolet extended cab pickup.
State police said the pickup is believed to raised or "lifted" about 6 inches. There is no license plate information.
Evidence found at the scene indicates the pickup should have front damage.
OSP troopers from the Springfield Area Command office are continuing the investigation. Senior Trooper Blaine Hlebechuk is the lead investigator.
Anyone with information regarding this investigation is asked to call OSP Northern Command Center dispatch at 800-452-7888 or email tips in this case to crimetips2OSP@state.or.us.
Email tips will be monitored by the Criminal Investigations Division, reviewed and then forwarded to the lead investigator for follow-up investigation. Emails should include specific details including the type of case and tip information related to the criminal investigation. Even though tips may be received anonymously, email authors are encouraged to provide contact information for follow-up by the investigator, if needed.