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Marine Corps Identifies Pfc. Tanner Rubio as Marine Killed in Camp Pendleton Training Mishap

Officials say the Dec. 3 vehicle accident remains under investigation, unrelated to the Steel Knight exercise.

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PFC. Tanner Rubio, 21, from Dixon, was identified by Marines as the infantryman killed in a tactical vehicle training exercise on Dec. 3 at Camp Pendleton. (Photo courtesy of USMC)
FILE - The entrance to Marine Corps base Camp Pendleton is seen on Sept. 22, 2015, in Oceanside, Calif. (AP Photo/Gregory Bull, File)
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Overview

  • Rubio, 21, died after a tactical vehicle mishap around 1:45 p.m. on Dec. 3 during routine training at Camp Pendleton.
  • The infantry Marine was assigned to 1st Battalion, 1st Marines within the 1st Marine Division and I Marine Expeditionary Force.
  • Authorities said he was inside a tactical vehicle at the time, while the vehicle type, precise location on base, and any additional injuries were not disclosed.
  • Marine Corps leaders, including 1st Marine Division commanding general Maj. Gen. Thomas Savage, offered condolences in a public statement.
  • Rubio, a Dixon, California native who joined the Corps in January 2025, was identified as the investigation proceeds against a backdrop of prior Pendleton training fatalities.