VIDEO: Texas Officer Stabbed 14 Times, May Lose Arm

Prosecutors said a 24-year-old police woman was stabbed a total of 14 times by a man who allegedly told investigators he was out to kill the police officer because "cops are oppressive."

Houston homicide investigators said Jeremiah M. Matthews, 23, tried to kill off-duty Houston Community College Officer April Pikes early Tuesday morning while she was working as a security guard at a Meyerland Walmart store, reports KPRC .

During a magistrate's hearing Tuesday night, prosecutors said, "The defendant gave a statement admitting he had the intent to attack a police officer and his desire to kill a police officer.”

According to witnesses, Matthews came into the store, tackled Pikes and began stabbing her with a hunting knife. But customers helped stop the brutal attack by tackling the man to the ground.

Officials said Pikes is expected to survive the brutal attack, but she may lose her right arm.

Matthews, who reportedly has a history of mental illness, is charged with attempted capital murder of a police officer and aggravated assault with a deadly weapon. He could get up to 99 years in prison if convicted.