Shane Columbo just flew to Chicago Sunday to start school at Northwestern University and move in with his fiance. That night, he went to pick up hangars for their new apartment.
"We Skyped, and I told him like, 'You need to stay home. You need to rest. You just got in,'" said Columbo's fiance Vincent Perez.
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While Shane was walking on the street, two people started shooting. He was caught in the crossfire and hit by a bullet.
Shane's mother, who lives in Southern California, says her son survived cancer when he was 15 and was an outstanding student.
He graduated from SFSU in 2016.
"Shane worked hard to accomplish his goals," she said. "He wanted to make a difference with his research and knowledge and I knew he would."
No one has been arrested.