SANTA CLARA COUNTY (CBS SF) — The Santa Clara County Sheriff’s Office is asking for the public’s help in finding out how a man ended up on fire on the side of U.S. Highway 101 south of Gilroy last Friday.

The victim later died, according to authorities.

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Deputies responded at 2:48 a.m. last Friday after California Highway Patrol officers found a man burning in a fire on the side of Highway 101 in the area of the Sargent overcrossing, sheriff’s officials said.

The man, later identified as 40-year-old Gilroy resident Jerry Mungaray, was taken to Santa Clara Valley Medical Center in critical condition and died late Friday night.

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Jasmine Richards, Mungaray’s sister, wrote on Facebook to ask for help in solving the case, saying her brother was last seen Thursday night in a verbal confrontation with people in two cars in front of a 7-Eleven store at 162 E. 10th St. in Gilroy.

“We are asking for help to get these sick people off the street,” she wrote.

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The sheriff’s office in a news release Tuesday did not mention an altercation at the 7-Eleven or any other events that may have led up to Mungaray’s death, but asked anyone with help to call their Investigative Services Division at (408) 808-4500 or an anonymous tip line at (408) 808-4431.