Lily Silva-Lopez tries to break up with her boyfriend of six months, but Jovanni Sirio-Cardona is not ready to give up the relationship.

He responds by threatening the girl. He puts a gun barrel in her mouth and tells the teen that they are not breaking up. Lily Silva-Lopez confides in a cousin about the threats and the cousin tells Silva-Lopez's mother.

Greely police respond to a domestic violence complaint when Lily Silva-Lopez tells police that Sirio-Cardona had punched her in the face and hurt her arm. Weeks later, Silva-Lopez is shot multiple times in the hallway of her home, then dragged back into her room.

Joining Nancy Grace Today:

Wendy Patrick - California Prosecutor, Author of "Why Bad Looks Good," and "Red Flags;" Hot of "Today with Dr. Wendy" on KCBQ in San Diego; Twitter: @WendyPatrickPHD
Dr. Shari Schwartz - Forensic Psychologist (specializing in capital mitigation and victim advocacy); Author of "Criminal Behavior" and "Where Law and Psychology Intersect: Issues in Legal Psychology;" Twitter: @TrialDoc
Robert Crispin - Private Investigator, Former Federal Task Force Officer for United States Department of Justice, DEA and Miami Field Division; Former Homicide and Crimes Against Children Investigator; Facebook: Crispin Special Investigations, Inc.
Shannon Henry - President & Founder of SASS Go, (Surviving Assault Standing Strong: a nonprofit on a mission to eradicate abuse, trafficking and violence against women and girls globally); Department of Education Adjunct Professor at the University of South Carolina; FB, Instagram, Twitter, and TikTok: @sassgoglobal
Dr. Tim Gallagher - Medical Examiner State of Florida, Lecturer: University of Florida Medical School Forensic Medicine, and Founder/Host: International Forensic Medicine Death Investigation Conference
Jen Smith - Chief Reporter for DailyMail.com; Twitter: @jen_e_smith

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Teen Breakup Ends in Murder