Port Arthur man convicted of aggravated sexual assault

Jefferson County Seal

Port Arthur resident Vincent Lamar Williams, 57, has been found guilty of aggravated sexual assault by a Jefferson County jury and sentenced to 20 years in prison announced Criminal District Attorney Cory Crenshaw in a press release, Oct. 6. Williams was found guilty on Oct. 3, 2014, for sexually assaulting a Port Arthur resident in her home on Jan. 3, 2003.  The trial was held in the Criminal District Court, Judge John Stevens presiding. 

According to testimony during trial, in the early morning of Jan. 3, 2003, the victim was awoken by Williams standing in her bedroom.  The victim was alone in her home with her two small children.  Williams brandished a handgun and then bound and gagged the victim and forced her to remove her clothes.  The victim was blindfolded and then forced into her laundry room where she was sexually assaulted by Williams. 

The victim was unable to visually identify her rapist, but forensic evidence left behind by Williams led to his conviction.  Scientific evidence collected during the victim’s sexual assault exam and analyzed by the crime lab, revealed that the rapist’s DNA was left behind at the crime scene on the victim’s body.

The DNA profile of the rapist was entered into CODIS, which stands for Combined DNA Index System to determine if it matched any known DNA profiles already in the system.  In 2010, seven years after the attack, a CODIS search led to a “hit” with Williams’ DNA profile that was now on file in CODIS.  Further DNA testing matched Williams’ DNA to that DNA recovered from the sexual assault exam. 

The trial was heard by a jury over the course of four days, handing up their guilty verdict late Friday afternoon. The jury reconvened today and assessed Williams’ punishment at 20 years in prison.  Williams must serve at least half his sentence before being considered for parole based upon current parole law.  Williams is currently awaiting trial in Harris County, Texas, for another charge of Aggravated Sexual Assault. 

Assistant Criminal District Attorney Ashley Chase prosecuted the case working from an investigative case file put together by the Port Arthur police department.

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