Doney, who teaches what is now a 10-student class of ninth-, 10th- and 11th-graders, said Knight was a "great kid with a huge heart."
Doney said he had just read a story written by one student about how no matter what kind of trouble he was in, Knight could always make him smile and make him realize that it was not the end of the world.
Antioch police said Knight was with several of his cousins when they got into an argument Thursday night over a financial debt in the parking lot of an apartment complex at 3915 Delta Fair Blvd. It appears the argument had been going on for at least a couple of weeks, police said.
Shortly after 11:10 p.m., Knight and his cousins got into a car and somebody from the other group fired several shots at them. One of the bullets struck and killed Knight as he sat in the back seat, police said.
Several people were taken to the police station that night for questioning, but so far nobody has been arrested in connection with the shooting, police said Monday afternoon.
Students have decorated a bulletin board outside their classroom with photographs of Knight and the stories they wrote about him, Doney said.