MARTINEZ, Calif. (AP) - A 17-year-old Richmond boy has been convicted in the random shooting death of another teen.

     

Prosecutors say Tyris Franklin went to the city's Crescent Park neighborhood in January 2011 to get revenge because some residents had beaten up his younger brother. They say Franklin randomly chose 16-year-old Gene Grisby-Bell, who had no part in the earlier attack.

     

The El Cerrito High football player was killed outside his home.

     

Franklin, who was charged as an adult, testified at trial that he didn't intend to kill anyone. His attorney argued that the teen was living in fear from the previous violence and wasn't thinking clearly at the time.

     

According to reports, jurors on Thursday found Franklin guilty of first-degree murder.

     

He faces 50 years to life in prison when he's sentenced on May 25.

(Copyright 2012 by The Associated Press.  All Rights Reserved.)