Vollmer soon became pregnant with Burroughs' child. Their son, William S. Burroughs Jr., was born in 1947. The family moved briefly to New Orleans in 1948. Burroughs fled to Mexico to escape possible detention in Louisiana's Angola state prison. Vollmer and their children followed him. Burroughs planned to stay in Mexico for at least five years, the length of his charge's statute of limitations. Burroughs also attended classes at the Mexico City College in 1950 studying Spanish, as well as "Mexican picture writing" (codices) and the Mayan language with R. H. Barlow. Their life in Mexico was by all accounts an unhappy one. Without heroin and suffering from Benzedrine abuse, Burroughs began to pursue other men as his libido returned, while Vollmer, feeling abandoned, started to drink heavily and mock Burroughs openly. One night while drinking with friends at a party above the American-owned Bounty Bar in Mexico City, a drunk Burroughs allegedly took his handgun from his travel bag and told his wife, "It's time for our William Tell act." There is no indication that they had performed such an action previously. Vollmer, who was also drinking heavily and undergoing amphetamine withdrawal, allegedly obliged him by putting a highball glass on her head. Burroughs shot Vollmer in the head, killing her almost immediately. Soon after the incident, Burroughs changed his account, claiming that he had dropped his gun and it had accidentally fired. Burroughs spent 13 days in jail before his brother came to Mexico City and bribed Mexican lawyers and officials to release Burroughs on bail while he awaited trial for the killing, which was ruled culpable homicide. Vollmer's daughter, Julie Adams, went to live with her grandmother, and William S. Burroughs Jr. went to St. Louis to live with his grandparents. Burroughs reported every Monday morning to the jail in Mexico City while his prominent Mexican attorney worked to resolve the case. According to James Grauerholz, two witnesses had agreed to testify that the gun had fired accidentally while he was checking to see if it was loaded, with ballistics experts bribed to support this story. Nevertheless, the trial was continuously delayed and Burroughs began to write what would eventually become the short novel "Queer" while awaiting his trial. Upon Burroughs' attorney fleeing Mexico in light of his own legal problems, Burroughs decided, according to Ted Morgan, to "skip" and return to the United States.