Mexico's Secretary of Security and Citizen Protection Omar Garcia Harfuch (R) speaks during a press conference with Mexican President Claudia Sheinbaum in Toluca, Mexico, in late July. On Friday, García Harfuch said investigators believe the killing of Valeria Márquez was ordered by Ricardo Ruiz Velasco, known as "El Doble R." Photo by Felipe Gutirrez/EPA

Aug. 3 (UPI) -- Mexican authorities arrested Ivan Martin "N," accused of being a co-perpetrator in the 2025 killing of influencer and model Valeria Márquez -- a high-profile femicide that drew international attention after she was shot while livestreaming on TikTok, prosecutors said.

The arrest marks the latest development in a case that shocked Mexico and sparked renewed debate over gender-based violence, social media exposure and organized crime.

Márquez, 23, was a beauty influencer and entrepreneur with hundreds of thousands of followers across social media. She was killed May 13, 2025, while broadcasting live from Blossom The Beauty Lounge, the beauty salon she owned in the Guadalajara suburb of Zapopan.

Video of the attack spread widely online after a gunman entered the salon and opened fire, killing Márquez at the scene.