A teen boy found unconscious on the grounds of Santa Rosa's Montgomery High School was in a medically-induced coma Sunday due to the serious head trauma he suffered, police said.
But how the 15-year-old became injured remained a mystery, more than a day after a man walking his dogs found the boy, breathing but unconscious and bleeding profusely, on his back and slightly up against a wall outside the school's gym, Santa Rosa Police Sgt. John Cregan said.
Staff at Oakland Children's Hospital told police they expected the Maria Carrillo High School student to remain in a coma for three-to-five days.
"Then we will try to interview him," Cregan said.
Until then, police are left to follow several different investigative leads, which range from a fight to a fall from the schools' roof, Cregan said. No witnesses had come forward Sunday and police again asked for the public's help.
"There were people playing at the softball field at the time, it's an open campus," Cregan said. "We're hoping that anyone who saw kids who were playing on the roof or engaged in a fight will come forward."
Police originally reported the boy's age as 17, but officers later learned that he is actually 15 years old, Cregan said. Cregan said the Police Department would not be releasing the boy's name because police still don't know what happened to him, including if he was the victim of a violent crime.
Detectives Sunday were interviewing the boy's friends. Montgomery High School staff were reviewing surveillance footage from nearby cameras, Cregan said.
The teen lives with his family near Montgomery High's Hahman Drive campus, although he attends school across town in Rincon Valley.
The boy's father told police that his son left home to go for a walk at about 3:30 p.m. Saturday, 28 minutes before he was found unconscious. The boy's family told police it's not unusual for the teen to head outside on his own for a walk, Cregan said.