Corrections Department spokesman Jerry Massie said guards found a cell phone, marijuana and a homemade marijuana bong made of paper in Walker's cell.
During a shakedown search of other cells in Walker's unit, prison guards turned up two more cell phones with chargers, two cell phone chargers without phones, a bag of marijuana, tobacco and a shank.
â€œCell phones make it easier for them to get more contraband in and move things around,â€ Massie said.
He said the department is investigating how the contraband got into the prison. Walker could face felony charges and more time in prison for the drugs and phone.
Lynn Powell, president of the Oklahoma chapter of Citizens United for the Rehabilitation of Errants, an advocacy group for inmates and their families, said contraband is a problem plaguing Oklahoma's prison system.
â€œThere wasn't anything found in his cell that surprises me,â€ she said. â€œThe only thing that shocked me was that he was definitely rubbing it in people's noses.â€
Powell said budget cuts and staff reductions have coincided with more contraband, violence and lockdowns system wide.
Inmates are able to use cell phones to make things happen inside prison walls and out.
â€œThis insults the victim's family but also the other inmates that are in doing what they are supposed to be. Their families will also suffer repercussions when their units are locked down because of this.â€
Massie said the unit where the contraband was found is locked down, and Walker will remain in segregation indefinitely.