The 18-year-old victim, Delindsey Dwayne Mack, attended Yates last school year before transferring to Lamar.
Authorities say a masked gunman walked up to the teen and a 15-year-old student firing shots.
The 18-year-old was shot multiple times, and transported to the hospital where he later died.
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On the Yates campus Tuesday, Mack was remembered as a well-known student before he transferred.
His cousin, Deon Claymore, who was born a day apart from Mack, still takes classes at Yates. He learned of the shooting while school was still in session.
"It was pointless. He really just had too much going on," Claymore said.
Students and parents told Eyewitness News that they were happy with the way officials handled the shooting.
HISD officials released the students from school at their normal times, but decided to cancel all after school activities as a precaution.
All school activities have been canceled at Yates HS.— Jack Yates High (@JackYatesHigh) November 13, 2018
"They didn't want us getting killed neither, you know, that's why Lamar was on lockdown," an unidentified student told us.
Yates' schedule is expected to resume as normal on Wednesday.