Edna Trigo – Author, Private Investigator

 Edna Trigo’s long career in criminal justice has inspired her to write true crime stories. Street smart from growing up in a tough suburb of Chicago. She went from making sandwiches at an Italian deli to leading the Cartel Working Group. After retiring from the Sheriff’s Department, she started her private investigations and security consulting firm. She knows the game and how it’s played. 

This makes her different than other writers on school shootings. Edna is a 

subject matter expert inside the mind of the juvenile school shooter. 

Edna was the criminal defense investigator assigned to the Andy Williams case and gathered evidence by interviewing more than two hundred witnesses and spent 18 months living, breathing, and working the case.

Edna spent twenty-seven years in the criminal justice field. A Crime & Intelligence Analyst with the San Diego County Sheriff's Department; she retired in 2014. After one year, she was asked to return to support investigations with jail calls until July 2020. Her career in the courts and criminal justice included the District Attorney, Public Defender, and Sheriff's Department. At the District Attorney’s Office, she was assigned to the Victim/Witness Program as an advocate for victims of violent crimes. 

While at the Department of the Public Defender, she worked on a high-profile school shooting case and received Investigator of the Year in 2001.

Her Criminal Intelligence training began in 2007, at the DEA Academy in Quantico, VA.

Assigned to the Criminal Intelligence Detail, she worked on Prison Gangs, Organized Crime, International Drug Trafficking Organizations, Money Laundering, and Public Corruption. She worked closely with the FBI, DHS, DEA, and CBP on sensitive cases. She represented the Sheriff’s Department on the International stage in El Salvador and Bogota, Columbia.

Edna founded the Cartel Working Group for Federal, State, and Local agencies. Edna also produced strategic and tactical threat assessments in support of Intelligence-Led Policing. She worked jointly with the FBI, DHS, and local agencies to produce the “Cross Border Threat Assessment”.

In 2017, Edna was recognized with the Exemplary Award as the Lead Analyst on a year-and-a-half investigation that resulted in the takedown of 55 gang members involved in heroin distribution to San Diego County from Tijuana, Mexico. 

After retirement, Edna started her private Investigations and security consulting firm. She is a new author and working on her debut book on school shootings.