I was in Uthaithani in 1975 as a Peace Corps volunteer. I had friends who were policemen. Chada's older brother, Chaiyos, also known as "Phet Boon", was involved in drug smuggling and other illegal activities, as well as being an overall bad person (an "andaphan" ie, an infamous criminal). He was killed after I went to Uthai. I never met Phet Boon, or Chada or his sister, or even knew that they were all from Pakistan.