HOUSTON, Texas (KTRK) -- An 18-year-old high school student shot and killed in an Alief neighborhood on Oct. 25 was selling vape pens at the time, investigators say.

Surveillance video shows Alan Tavera crashing into a parked pickup truck on Briar Terrace Drive that night after being shot.

On Wednesday, the Houston Police Department released new surveillance video showing five persons of interest and a white pickup truck, which they describe as a vehicle of interest.

Tavera's mother said he had celebrated his 18th birthday just weeks earlier.

"This house is empty without him. This house revolved around him. He was the only child," Brisa Tavera said.

She said her son was headed to a Halloween party the night he was killed and had planned to pick up friends along the way.

She said he

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