Katherine Magbanua
Charged as an intermediary in the murder-for-hire of Dan Markel, tried as a defendant in both the Garcia/Magbanua 2019 trial and the 2022 Magbanua retrial, then a prosecution witness in the 2023 Charlie Adelson and 2025 Donna Adelson trials.
About
Magbanua is a connective figure across all four proceedings — a person who first appeared as an accused participant and later as the State's firsthand narrator of the arrangement. Her successive accounts, taken under oath years apart and tested by cross-examination in each proceeding, are direct evidence of how the payments, the envelope, and the phone contacts fit together, and they also document a witness contradicting herself, which makes the proceedings involving her useful for readers tracing how the prosecution's theory was built and challenged over time.
Trial Record (192)
GM Garcia–Magbanua Sep 26, 2019 – Oct 11, 2019
Trial Summary
Charged as a co-defendant alongside Sigfredo Garcia and tried jointly on the State's theory that she was the intermediary between Charlie Adelson and the shooters, Magbanua testified in her own defense on day nine and denied any involvement in Dan Markel's murder.
Testimony (6)
Mentioned (33)
KM Magbanua Retrial May 18, 2022 – May 27, 2022
Trial Summary
Stood trial as the sole defendant on charges of first-degree murder, conspiracy, and solicitation, was named by the State as the link between the Adelson family and the men who killed Dan Markel, testified in her own defense on Day 7, and was found guilty on all three counts.
Testimony (3)
Mentioned (60)
CA Charlie Adelson Oct 26, 2023 – Nov 6, 2023
Trial Summary
Testifying for the State on the third trial day, Katherine Magbanua described being the intermediary between Charlie Adelson and the men who killed Dan Markel, and acknowledged that she had denied involvement under oath at her own earlier trial.
Testimony (3)
Mentioned (50)
DA Donna Adelson Aug 22, 2025 – Sep 4, 2025
Trial Summary
Testified for the State on August 26, 2025 as a convicted codefendant who said she was the middleman connecting Charlie Adelson to Dan Markel's killers, and acknowledged on cross that she had lied at her own trial and had almost no contact with the defendant.