San Diego’s Jesse Milton Alvarez arrested, accused of killing Cathedral Catholic High School teacher Mario Ferrio

Mario Fierro (©Archdiocese of San Diego)

Mario Fierro (©Archdiocese of San Diego)

Jesse Milton Alvarez, 30, of San Diego, California, United States was arrested without incident at a house in Serra Messa, San Diego on the evening of February 2, 2021. He was accused of fatally shooting Mario Fierro, 37, on a sidewalk on Kansas Street in San Diego on the morning of February 1, 2021.

Fierro is a teacher at Cathedral Catholic High School, a private coeducational Catholic college preparatory high school in San Diego. The school is operated by the Roman Catholic Diocese of San Diego.

“Everyone in our school community mourns his loss,” The Coast News quoted the Roman Diocese of San Diego spokesman Kevin Eckery as saying of Fierro’s death. “Mario was young, vibrant and full of life. All of us loved him.”

The motive behind the fatal shooting of Fierro is still unclear. Authorities believe that he got into a dispute with Alvarez, who later on drove off to the north in a small older-model vehicle in the neighborhood just west of Interstate 805 and south of Madison Avenue.

Alvarez was booked into the San Diego Central Jail. His arraignment will be on February 19, 2021.


In 2002, Fierro graduated from University High School in Linda Vista, San Diego. In 2005, the school was renamed Cathedral Catholic High School and transitioned to its campus in Carmel Valley Village, Monterey County, California.

In 2016, Fierro went back to the school to teach social science and serve as a football coach. He also served as the athletic director at Notre Dame Academy (NDA) in San Diego, according to the Del Mar Times.

Los Angeles Chargers general manager Tom Telesco reacted to the death of Fierro. The late teacher taught Telesco’s children at Cathedral Catholic High School.

“He was a special person and will be greatly missed,” Tolesco said of Fierro in an interview with KUSI. “I feel for everybody in NDA and the Cathedral Catholic the community all the students and parents that came through and dealt with Mario Ferrio on a daily basis.”

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.