Teen pleads not guilty to killing his great-grandmother

HILLSBORO, Ore. - The 17-year-old boy accused of killing his great-grandmother pleaded not guilty Wednesday during a court appearance.

The lawyer for Joda Cain said he's looking forward to working with authorities more to get to the bottom of the real story. He says Cain is innocent.

The teen is facing charges of aggravated murder and felony murder. He didn't show any emotion or say anything in court. His lawyer did all the talking.

According to court documents, he robbed and killed his great-grandmother, Jacqueline Bell, using a weapon. The medical examiner found that the 71-year-old died of blunt force trauma.

Prosecutors say Cain, along with his cousin, 19-year-old Micus Ward from Kansas City, killed Bell than stole her car, leading police on a high-speed chase on Interstate 84 in the Columbia River Gorge just hours later.

Cain was living with Bell in Cedar Mill. He was a junior at Sunset High School.

He's now in jail awaiting his next court appearance.