Eugene, OR -

A Eugene man who pleaded guilty to accusations he drove a pickup truck flying a Confederate flag and shouted racial epithets at a terrified mixed-race youth has been sent to prison for violating probation.

The Register-Guard reports 23-year-old Matthew Robert Booster had agreed to complete a cultural awareness class among other steps as part of a plea deal last year on an intimidation charge.

Prosecutors say Booster acknowledged he'd broken the agreement. Other failings included drug use and not reporting properly to probation officers. In court Monday, Judge Jay McAlpin ordered him to serve up to 16 months.

Police say Booster and three teenagers shouted slurs at a 15-year-old boy in downtown Springfield on Memorial Day 2012. The youth hid in bushes until his mother arrived.