Wesley Mathews, 37, was also charged in Dallas County with abandoning a child and tampering with evidence. Prosecutors said the capital murder charge, which could carry the death penalty, was filed after an autopsy determined his daughter died from "homicidal violence."
The child, Sherin Mathews, disappeared in early October, sparking a broad search involving numerous law enforcement agencies before her body was found later that month.
Mathews initially told police that his daughter disappeared after he punished her by sending her out in the night to stand by a tree near their home. He later told investigators the girl had developmental disabilities and was malnourished. He described a special diet regimen in which she had to eat whenever she was awake in order to gain weight.
Mathews said he had been trying to force the girl to drink milk in the garage of their home, according to an arrest affidavit filed by Richardson police. Mathews told police that Sherin choked and coughed and eventually he felt she had no pulse and believed the child had died. Investigators wrote that he "then admitted to removing the body from the home." The indictment released today alleges Mathews caused his daughter's death on October 7 using a deadly weapon that "is unknown to the grand jury."
An attorney for Wesley Mathews, Rafael de la Garza, did not immediately return a call for comment today. An attorney for Sini Mathews has previously said she played no role in Sherin's death.