Lt. Mariano Pargas resigns from City of Uvalde Police Department admin 2 years ago Texas via AP file https://www.nbcnews.com/news/us-news/acting-uvalde-police-chief-school-shooting-steps-rcna57778 News Brief County Commissioner Mariano Pargas CNN and other news outlets have reported that Lt. Mariano Pargas of the Uvalde Police Department has resigned according to Uvalde Mayor Don McLaughlin.