In a plea deal criticized by the father of a victim, a California man pleaded guilty Thursday to providing the high-powered rifles used to kill 14 people in the San Bernardino terror attack.

Enrique Marquez Jr. appeared in federal court in Riverside with his hands cuffed and chained to his waist as a judge accepted his plea agreement with prosecutors.

Gregory Clayborn, the father of one of those killed, opposed the deal in remarks to the judge before the hearing.