Witness

Yindra Velazquez Mascaro

Prosecution witness in Trial 1 who testified to Magbanua's cover-story framing of the Markel murder as a car accident; cited only as a cell site location landmark in Trials 2 and 3.

Appeared Magbanua Retrial

Mentioned Charlie Adelson Donna Adelson

606 lines · 5 appearances · 12 mentions · 3 trials

About

Mascaro provides the archive with a firsthand lay-witness account of Magbanua characterizing the Markel murder as a car accident within hours of its occurrence, one of the few direct observations of Magbanua's post-crime conduct in the record. Her Instagram-corroborated confirmation of the July 18 overnight also creates a cross-type corroboration node between witness testimony and the cell site evidence about Magbanua's movements, making her Trial 1 testimony a meaningful reference anchor for evidence integration across the case record.

Across Trials

Mascaro's role contracted substantially after the first trial. In Trial 1 she was an active prosecution witness called twice—once in main examination across direct, cross, and redirect, and once recalled on a discrete date question—whose firsthand account of the car-accident cover story and Instagram-corroborated overnight confirmation made her one of the more substantive lay witnesses in that proceeding; the defense also engaged her directly on a police report discrepancy, treating her account as worth challenging. In Trials 2 and 3 her presence was reduced to a single geographic reference per trial, confined in each case to one proceeding: her residence served as a cell site destination landmark in testimony about Magbanua's July 19 movements, with no direct examination, no mention of her relationship to Magbanua or the case, and no indication the car-accident cover story was re-elicited. The core substance of her Trial 1 testimony appears to have been treated as established by the time of the later proceedings rather than requiring re-presentation.

Trial Record (17)

KM Magbanua Retrial May 18, 2022 – May 27, 2022

Trial Summary

Called by the prosecution as a childhood friend and godmother to one of Magbanua's children, Mascaro testified about Magbanua's employment history, Garcia's jealousy toward Charlie Adelson, and — most consequentially — Magbanua's characterization of the Markel murder as a car accident the morning after it occurred.

Appearances (5)

Direct

Yindra Velazquez Mascaro - Direct

Day 4 Cross

Yindra Velazquez Mascaro - Cross

Day 4 Redirect

Yindra Velazquez Mascaro - Redirect

Day 4 Direct

Yindra Velazquez Mascaro - Direct (Recall)

Day 4 Cross

Yindra Velazquez Mascaro - Cross (Recall)

Day 4

Mentioned (10)

Direct

Christopher Corbitt - Direct

Day 3 Direct

Christopher Corbitt - Direct (Continued)

Day 3 Procedural

Afternoon Recess — Prosecution Requests Mascaro Recall for Instagram Date Clarification

Day 4 Cross

Patrick Sanford - Cross told investigators Magbanua worked at Club Fate in 2014, before she became pregnant

Day 6 Redirect

Patrick Sanford - Redirect

Day 6 Direct

Katherine Magbanua - Direct High school friend and coworker at the clubs; accompanied Magbanua to the Icon beach day with Wendi Adelson.

Day 7 Cross

Katherine Magbanua - Cross

Day 7 Closing

Closing Argument - Georgia Cappleman

Day 8 Closing

Closing Argument - Tara Kawass

Day 8 Rebuttal

Rebuttal Closing - Georgia Cappleman Testified that Magbanua pursued Garcia for child support in January 2015, undermining the theory that Garcia gave her large cash payments in the months after the murder

Day 8

CA Charlie Adelson Oct 26, 2023 – Nov 6, 2023

Trial Summary

Referenced in proceeding 176 as Katherine Magbanua's babysitter on the night of July 18 and the destination of Magbanua's movements on the morning of July 19.

Mentioned (1)

Direct

Christopher Corbitt - Direct

Day 3

DA Donna Adelson Aug 22, 2025 – Sep 4, 2025

Trial Summary

Mascaro's residence appeared as a geographic reference point in cell site location testimony; she held no active role in these proceedings.

Mentioned (1)

Direct

Christopher Corbitt - Direct (Continued)

Day 4