Crime
Gabriel Williams accused of destroying evidence in deaths of Dahlen Semar and Madison Guillory in Lake Charles
The coroner will determine cause of death.
Lake Charles, LA – Last night, November 12, at approximately 8:00 p.m. Calcasieu Parish Sheriff’s Office deputies responded to a welfare check at a residence on Topsy Road in Lake Charles after a caller advised there was a possible ongoing hostage situation.
When deputies arrived, they attempted to make entry into the residence at which time they heard a gunshot.
CPSO ACT-Team responded and after clearing the residence deputies located two deceased females, Dahlen Semar, 23, and Madison Guillory, 23, both of Lake Charles.
After further investigation, detectives learned the complainant, Gabriel B. Williams, 24, Lake Charles, provided false and misleading information to deputies.
Detectives also learned after Williams contacted law enforcement he immediately attempted to destroy possible evidence in the case.
He was arrested and booked into the Calcasieu Correctional Center and charged with obstruction of justice; and failure to report certain felonies.
His bond is pending.
“The investigation is currently ongoing, and we are talking with family members and friends of both parties. We believe this is an isolated incident and I want to take this time to remind everyone in our community that help is available for those who may be experiencing hard times. If you or someone you know is struggling, please reach out for support. You can contact the National Suicide Prevention Lifeline by texting or calling 988,” stated Sheriff Stitch Guillory.
The coroner will determine cause of death.
CPSO Detective Alex Zaunbrecher is the lead investigator on this case.
An arrest is an indication that probable cause exists to believe the subject was involved in the offense alleged. A person is innocent until proven guilty beyond a reasonable doubt.
*To clarify at this time we don’t have any information to lead us to believe Williams had any first hand involvement with the deaths themselves.
City of Hammond, Louisiana — At approximately 11:50 p.m. on February 24, 2026, officers with the Hammond Police Department responded to a report of shots fired involving one possible victim.
Upon arrival, officers located a 14-year-old juvenile female, identified as Tyronai Reed, suffering from an apparent gunshot wound.
Emergency medical assistance was rendered at the scene, and she was transported to North Oaks Health System for treatment.
Despite life-saving efforts, Reed later succumbed to her injuries.
Detectives assigned to the department’s Criminal Investigations Division launched an immediate homicide investigation.
During the course of their investigation, authorities identified 18-year-old Demontez Treyvon “Trey” Robinson of Hammond as a suspect in the shooting.
While actively working the case, officers observed a vehicle traveling at a high rate of speed and conducted a traffic stop.
Robinson was identified as the driver of the vehicle and was taken into custody without incident.
Robinson was transported to the Criminal Investigations Division for questioning. According to investigators, Robinson admitted that the firearm discharged while he was handling or “playing with” it, resulting in the single round striking the 14-year-old victim.
Robinson was subsequently booked into the Hammond City Jail on one count of Negligent Homicide.
Authorities emphasize that the investigation remains in its early stages and additional details may be released as they become available.
Anyone with information related to this incident is encouraged to contact Detective Corey Morse with the Hammond Police Department Criminal Investigations Division at 985-277-5758 or via email at morse_cm@hammond.org. Tips may also be submitted through the department’s official Facebook page or anonymously through Crime Stoppers of Tangipahoa at 1-800-554-5245.
Individuals providing information may be eligible for a cash reward. Authorities urge members of the community to assist in the ongoing investigation.