Eighteen-year-old Terrance Wright was murdered Friday on Chicago's South Side and his family believes he was killed because he was gay.

CBS Chicago reported that Wright lost his life at 99th and Yates. Police speculate that he died in the course of an attempted robbery.

The Banner Academy South High School senior was approached after leaving his school in the Jeffrey Manor neighborhood, The Chicago Tribune reported. Police said Terrance fought back five attackers and was shot in the chest.

Wright's family claims that the teen was murdered because he was openly gay.

“I believe they only did that to him because he was gay,” said Javone Wright, Terrance's 16-year-old brother.

“What they going to rob him of – his books?” rhetorically asked Wright's uncle, Tywan Bouldin, who also believes his nephew died because of his sexual orientation.

Bouldin said Terrance was bullied at school and in his neighborhood.

“They had to kill my cousin because he was gay,” said Kenyatta Rogers. “That's crazy.”

Police have yet to charge anyone with the crime.