NORMAN, Okla. -- An Oklahoma man was convicted Friday of first-degree murder in theat a food processing plant.
Jurors deliberated for about two hours before finding 33-year-old Alton Nolen guilty in the death of 54-year-old Coleen Hufford.
The jury also convicted Nolen of assault and battery with a deadly weapon for attempting to behead a second co-worker at the Vaughan Foods plant in Moore, a suburb of Oklahoma City. Prosecutors have said they would seek the death penalty.
The victim's daughter, Kelli Hufford, said in a statement that the verdict has brought her a greater sense of closure.
This has been a long road for my family and me. We are thankful the jury found Alton guilty of murder. All of us now hope for a swift sentencing process concluding with the death penalty for this killer," Kelli Hufford said in the statement to CBS affiliate KOTV.
She added, "None of this will ever bring my mother back to us, but there is a greater sense of closure as justice continues to be administered and our family embraces the healing process."
Investigators said Nolen had just been suspended from his job when he walked into the company's administrative office and attacked Coleen Hufford. Authorities said Nolen stabbed another co-worker, who survived, before he was shot by a company executive.
Defense attorneys argued that Nolen is mentally ill and didn't know his actions were wrong. But prosecutors said Nolen knew right from wrong before he attacked Hufford.
Nolen had repeatedly tried to plead guilty and asked to be executed, but Cleveland County District Judge Lori Walkley declined to accept his plea. One of Nolen's attorneys had questioned whether his client was mentally competent to enter a guilty plea. Psychologist Jeanne Russell testified Tuesday that Nolen was mentally ill at the time and is getting sicker.
At a 2016 hearing, Nolen told Walkley that he would only accept a death sentence, not life in prison with or without the possibility of parole.
But the judge reminded Nolen repeatedly that if he pleaded guilty and waived his right to a jury trial, the decision to sentence him to death or life in prison would be up to the judge, not the defendant.