MSU biologist examining plant evidence

LUDINGTON, Mich. -- Michigan police hope some plant seeds will lead them to a baby who disappeared two years ago in Ludington.

A Michigan State University biology professor is trying to identify Flora found on the suspect's shoe.

The suspect is already behind bars but investigators hope the evidence possibly two types of plants will lead them to the body of baby Kate.

"Here in Mason County, they are restricted in their distribution. They become the rare "anchor points" for this search to find the combination of plants," said Doctor Frank Telewski.

This type of forensic science first came to light in 1932 during the Lindbergh baby case. Investigators asked a "wood expert" to identify floorboards found in the suspect's home and match them to the crime scene.