A Jefferson Parish jury on Thursday (May 9) found Lam Thach guilty of killing his girlfriend by plunging a knife into her neck in Marrero.
Thach, 43, is guilty as charged of the second-degree murder of Ngoc Bich Nguyen, 41, in Marrero on Aug. 1, 2021, jurors unanimously decided.
A native of Vietnam, Nguyen was the oldest of six children who immigrated to the United States in 1990, first to Dallas, Texas, and then Metairie two years later. At the time of her death, she was living in Algiers with an uncle and had been dating Thach about three years.
In the months prior to her death, she twice called New Orleans police to her Joycelyn Drive home to report that Thach had physically abused her. He strangled her, threatened to not let her leave and was armed with a knife, she told police, who arrested him. Just four days after he was released from his bond obligations in the last arrest, he killed her.
On Aug. 1, 2021, after Thach sent Nguyen messages in which he maligned her family and called her derogatory names, Nguyen asked her mother to speak with Thach’s father, with whom she was acquainted.
Nguyen, her mother and her mother’s boyfriend drove to the Ames Boulevard trailer park in Marrero where Thach lived with his father. They spoke with Thach’s father, who in turn wanted his son to apologize.
Without apparent provocation, Thach entered the room and slapped Nguyen as she sat on the sofa. He then locked the front door to prevent anyone from leaving. He threatened to kill Nguyen and then went to the kitchen. Nguyen’s mother called 911.
Thach’s father unlocked the door, and Nguyen’s mother’s boyfriend walked out. Her mother was following him. Nguyen remained behind, sending a text message to her uncle and telling him that Thach slapped her. Her mother was near the front door when Thach reappeared from the kitchen, telling Nguyen, “You cannot leave.”
Nguyen called out: Thach had a knife and was trying to kill her. Her mother turned back toward her daughter. She saw Thach pulling the knife out of her first-born’s neck.
Nguyen’s mother held her hand and walked her out of the trailer, fearing that Thach would harm her, too. They called 911 again. Nguyen then lay on the ground. Cradling her daughter’s head and trying to stop the bleeding, her mother cried, “Don’t leave me.” Nguyen died there in her mother’s arms.
Thach casually walked away, removing his shirt and discarding it in a nearby garbage bin. A Jefferson Parish Sheriff’s Office deputy responding to the 911 call spotted and arrested him five minutes after he killed Nguyen. Questioned later by a detective, Thach said, “I will take my lick,” street talk for taking the punishment for his actions.
At trial, his attorneys laid blame on Nguyen and her family because they went to the trailer to initiate a confrontation. They asked jurors to consider manslaughter, a lesser homicide offense. And they painted Thach as a sympathetic person who immigrated to the United States about a decade ago, is illiterate, worked as a fisher and is unable to speak clearly because of a cleft lip.
Jurors who were seated Tuesday deliberated about 40 minutes before returning their verdicts. In addition to the murder, Thach was convicted as charged of obstruction of justice for discarding the shirt, which was evidence.
Judge Ellen Shirer Kovach of the 24th Judicial District Court is scheduled to sentence Thach on May 22.
Assistant District Attorneys Lindsay Truhe and Tommy Block prosecuted the case.