HOUSTON --A Pasadena man is accused of sexually assaulting his four young daughters. Antonio Sanchez is charged with four counts of aggravated sexual assault of a child. According to court documents, one incident occurred in May 2006 and two incidents in June 2006. The fourth incident happened in September 2010. All four victims are his biological daughters and all were under the age of 14 at the time of the alleged sexual assault. Prosecutors say the alleged abuse was long term and disturbing. Sanchez, 45, is being held on $250,000 bond on each count.