A Port Arthur man faces up to life in prison after being found guilty of aggravated sexual assault of a child. A JeffersonCounty jury convicted 53-year old James Arceneaux for the June 2013 sexual assault of a six year old girl at his Port Arthur home. Prosecutors also presented evidence during the trial that Arceneaux had also molested the victim’s 10-year old sibling. The punishment phase begins at 10:00 this morning in Judge John Stevens