Boys Beat Step-Dad Dead After He Molests Little Sister. Online petition for teens release grows.

A rancher finds Gabriel Quintanilla beaten, in a field outside McAllen, Texas. The 42-year-old dies of blunt force trauma to the head. An investigation uncovers a warrant for Quintanilla on charges of continuous sexual assault of a child and assault, family violence. This is after Quintanilla's 9-year-old daughter accuses him of inappropriately touching her.

Police said the girl's teen stepbrothers, Christian, and Alejandro Trevino, learn of the accusations and confront Quintanilla, leading to a fight. Quintanilla reportedly then left the area on foot. A second fight occurred when Christian Trevino allegedly chased Quintanilla.

At some point, Alejandro Trevino arrived in a car driven by friend Juan Eduardo Melendez, 18. The two other teens reportedly joined in on the attack. Quintanilla was then attacked a third time. Police believe brass knuckles were used. The teens put Quintanilla in the bed of the truck, then drive him to the open field where he is dumped.

Joining Nancy Grace Today:

• Kathryn Marsh - Special Victims Liaison for the State’s Attorneys Office (Charles County, MD), Co-Founder: Right Response Consulting, "No Grey Zone" Podcast", www.rightresponseconsulting.com, Instagram/Twitter @nogreyzoneRRC
• Caryn Stark - NYC Psychologist, www.carynstark.com, Twitter: @carynpsych, Facebook: "Caryn Stark"
• Greg Scheffer - Former Phoenix Police Department Detective, 22 Years Specializing in Child Sexual Exploitation, Crimes Against Children, Domestic Violence and Adult Sex Crimes.
• Dr. Kendall Crowns – Chief Medical Examiner Tarrant County (Ft Worth), Lecturer: University of Texas and Texas A&M, Affiliated Faculty: University of Texas Medical Branch
• Mark Reagan - Staff Reporter, The Monitor (Rio Grande Valley), MyRGV.com, Twitter: @RGVReagan, Instagram: @MonitorNews, Facebook.com/MonitorNews

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