---
title: 'Mario Marquez IQ of 65 Executed in Texas in 1995'
description: 'Mario Marquez had the adaptive skills of a 7 year-old. His trial counsel testified at a clemency hearing that he did not present any evidence of Mario’s…'
canonical: 'https://deathpenaltyinfo.org/stories/mario-marquez-iq-of-65-executed-in-texas-in-1995'
section: stories
date: '1995-01-17T00:00:00-05:00'
updated: '2025-03-14T15:00:22-04:00'
source: 'Death Penalty Information Center'
---

Mario Marquez had the adaptive skills of a 7 year-old. His trial counsel testified at a clemency hearing that he did not present any evidence of Mario's mental retardation because of a legal flaw in the Texas death penalty statute. Marquez was executed on January 17, 1995.