KANSAS CITY, Kan. (AP) — A woman has been charged in the death of a 19-year-old woman whose body was found nearly 30 years ago in Kansas City, Kansas.

The Wyandotte County District Attorney’s office said in a release Thursday that 48-year-old Carolyn J. Heckert is charged with first-degree murder in the December 1989 death of Sarah DeLeon, who was found stabbed to death along some railroad tracks.

Heckert is being held on $1 million bond following her arrest Wednesday in Smithville, Missouri, which is about 20 miles north of Kansas City, Kansas.

Police have said new DNA collection and testing technology prompted investigators to reopen the DeLeon case in July 2014.

A lawyer for Heckert didn’t immediately return calls seeking comment Thursday.

Gail Elieson, DeLeon’s mother, says she “quite pleased” charges were filed.

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KANSAS CITY, Kan. (AP) — A woman has been arrested in the 26-year-old unsolved killing of another woman in Kansas City, Kansas.

Kansas City, Kansas, police said in a news release that the U.S. Marshals Service took 48-year-old Carolyn J. Heckert into custody Wednesday in Clay County, Missouri.

She is being held on a $1 million bond in the killing of Sarah DeLeon. The body of the stabbed 19-year-old was found by railroad tracks in 1989.

Police investigators said in May that they believe there is a link between DeLeon’s killing, the unsolved 1994 slaying of Diana Marie Ault in Independence, Missouri, and an abduction in 1987. Investigators didn’t say then why they believe the cases are connected.

New DNA collection and testing technology prompted police to reopen the DeLeon case in July 2014.