The charred body found after a brush fire burned 50 acres in Mount Wilson is that of an 18-year-old from Sylmar who went missing last week, authorities said.

Matthew Huerta’s identity was confirmed by the Los Angeles County Department of Medical Examiner-Coroner’s Office, the Los Angeles Police Department said on Wednesday.

The 50-acre fire that threatened a historic observatory broke out around 4:45 a.m. Oct. 17 near Red Box Road in the Mount Wilson area above Sierra Madre.

Huerta’s family, authorities initially said, were concerned, as they described him as suicidal and said he may harm himself.

Samuel Soto of the Adult Missing Person’s Unit said on Wednesday the man was reported missing by his family at 7 p.m. Oct. 17 (after he was last seen the day before) in the 13400 block of Bradley Avenue. This was when family members filed the report at the station, Soto said.

A previous report said 11:30 a.m. Oct. 18 was when Huerta went missing but that date was when the case was assigned, Soto said.

The body was discovered on Oct. 18 but was “badly burned,” making identification take a few days, coroner’s Assistant Chief of Operations Ed Winter said previously.

On Wednesday, Winter said Huerta was pronounced deceased at 4:36 p.m. Oct. 18 and identified on Tuesday after the family provided X-rays.

The Los Angeles County Sheriff’s Department discovered the body and took it to the coroner’s office.

Initially, authorities added, Huerta’s last name was printed as Hurtado, but that was incorrect.

LAPD Detective Ross Nemeroff described the identification as “so sad” but had no further information.