The Montgomery County Sheriff's Office said investigators believe the suspect and the teen victim planned to meet on the night of the murder.
On Monday, the sheriff's office identified the teen as 15-year-old Khi Broussard.
MCSO said deputies responded in the 20700 block of Stevens Road, where they confirmed a 15-year-old was shot.
Deputies said the victim died on scene from his injuries.
A woman told ABC13 she and her family were the ones who saw the teen's body in front of a neighbor's house.
The woman said she didn't personally know the teen, but that she had seen him before and that he lived in the neighborhood.
The sheriff's office said Broussard previously attended Aldine Middle School and Keefer Crossing Middle School and was known to frequent the Greenspoint area.
Investigators believed the suspect and Broussard may have had prior contact through social media and planned to meet on the night of the murder.
However, the MCSO said no one is in custody yet.
The sheriff's office told ABC13 they are actively seeking leads and trying to identify a suspect.
Investigators are asking for any surveillance footage from the area that captured a possible suspect or suspect vehicle between 10:30 p.m. and midnight on Saturday.
Anyone with information is asked to contact MCSO at 936-538-5900. Individuals wishing to remain anonymous may contact Multi-County Crime Stoppers at 1-800-392-STOP (7867).
SEE ORIGINAL REPORT: Homeowner reports finding unknown 15-year-old dead in front of Montgomery County home, deputies say