OKLAHOMA CITY (AP) — A man charged in the 1997 slaying of a 19-year-old woman in Oklahoma has waived his right to face trial within 120 days of his extradition from Texas.

William Reece, 57, appeared in an Oklahoma court Thursday, The Oklahoman reported (http://bit.ly/2awhqAq ). He was extradited to Oklahoma on Monday.

Reece was charged last year with first-degree murder and kidnapping. He has pleaded not guilty.

Authorities say Tiffany Johnston was kidnapped on July 26, 1997, from a Bethany car wash. Her body was found the next day in Yukon, and authorities say she had been strangled. The Oklahoma State Bureau of Investigation says advancements in DNA testing linked Reece to the killing.

Reece has been serving a 60-year prison sentence in Texas for kidnapping.

He led investigators to two sets of female remains south of Houston earlier this year. The remains were identified in April as 20-year-old college student Kelli Cox and 17-year-old Jessica Cain.

Cox had been missing from Denton in North Texas since 1997, and Cain went missing the same year after dining with friends. Reece has not been charged in either of those cases.

Reece has also been previously named as a prime suspect in the April 1997 abduction and killing of a 12-year-old girl near Houston, but has not been charged.