Tim Staples died while on Mount Baldy, where he and others were searching for Sree Mokkapati, who went missing on the mountain weeks ago and has not yet been found.

Hikers on Mount Baldy are ignoring warnings and trekking into an area that’s officially closed after the disappearance of a hiker and the death of a volunteer while on a rescue mission looking for the missing man over the weekend. Patrick Healy reports for the NBC4 News on Tuesday, Dec. 17, 2019.

Friends, students and staff celebrated the life of Timothy Staples at a prayer service at Damien High School. Staples died while on the search for missing hiker Sree Mokkapati, who still has not been found. Patrick Healy reports for the NBC4 News at 5 p.m. Monday, Dec. 16, 2019.

About 100 people gathered at a vigil at Damien High School to light candles and leave flowers in memory of Timothy Staples, a teacher at the school who died Saturday after he fell while searching for missing hiker Sree Mokkapati on Mount Baldy. Staples volunteered with the West Valley Search and Rescue unit of the San Bernardino County Sheriff’s Department….

Members of the San Bernardino County Sheriff’s Department West Valley Search and Rescue team remember their partner at a vigil held at Damien High School. Jane Yamamoto reports for the NBC4 News at 9 p.m. Sunday, Dec. 15, 2019.

Family of missing hiker Sree Mokkapati joined a vigil for Timothy Staples, a veteran of the search and rescue team who died searching for Mokkapati. Darsha Philips reports for the NBC4 News at 9 p.m. Saturday, Dec. 15, 2019.

A motorcyclist was killed Sunday in a crash on Mount Baldy Road in Claremont.

The La Verne community is mourning after a beloved high school teacher and rescue volunteer died while searching for missing hiker, Sreenivas “Sree” Mokkapati. Gene Kang reports for Today in LA on Sunday, Dec. 15, 2019.

Timothy Staples was a 9-year member of the volunteer search and rescue team with the San Bernardino County Sheriff’s Department, and also a beloved teacher and coach at Damien High School in La Verne. Darsha Philips reports for the NBC4 News at 11 p.m. on Saturday, Dec. 14, 2019.

A member of the San Bernardino County Sheriff’s Department Search and Rescue team died Saturday while searching for missing hiker Sree Mokkapati on Mount Baldy in California.  The San Bernardino County Sheriff’s Department said in a tweet at 5:02 p.m. that a rescue team member was separated from his partner and found unresponsive after an air search. They identified him...

Justin Williams says he keeps reliving his last interaction with Sree Mokkapati. “I wish I would’ve been like, ‘No, you can’t do it man, you’re going to die,'” he says. Hetty Chang reports for the NBC4 News at 11 p.m. Wednesday, Dec. 11, 2019.

This hiker is believed to be the one who called authorities when his friend took a fall, after which he also got stuck on the mountain. Gil Leyvas reports for the NBC4 News at 4 p.m. Tuesday, Dec. 10, 2019.

Sreenivas “Sree” Mokkapati disappeared while hiking Mt. Baldy. His son says, “I know my dad. He’s not going to give up.” Patrick Healy reports for the NBC4 News at 4 p.m. Tuesday, Dec. 10, 2019.

Two hikers were rescued Tuesday off the snowy mountainside of Mount Baldy. The hikers were rescued near Devil’s Backbone Trail, a ridge-top hike on Baldy, in the San Gabriel Mountains. The rescue happened after a hiker fell and his friends called authorities for help. The second hiker, the friend who called for help, was hoisted into a helicopter and...

A Monrovia man pleaded not guilty Thursday to a capital murder charge that alleges he killed his girlfriend, who disappeared in late July and whose body has not been found.

Prosecutors say a Southern California man jailed on suspicion of battering his girlfriend has been charged with killing the woman, who has been missing since July.

Los Angeles County officials are offering a $10,000 reward for information about the disappearance of a woman missing for more than two weeks.

Newly-released security video shows the man investigators believe knows but is not telling what became of his missing former girlfriend. The video shows him stopping at a Fontana gas station an hour after he was said to be seen with 31-year-old Amanda Custer. Patrick Healy reports for the NBC4 News at 5 p.m. on Thursday, Aug. 8, 2019.

Homicide investigators searching for a Southern California woman believed to have been abducted by a boyfriend are trying to find out what happened during a five-hour gap in a timeline of his movements after she was seen being placed into his car, a detective said Thursday.