Prosecutors filed court papers Tuesday saying the Ford F-150 pickup truck seized by authorities from Scott Peterson was "an instrument used in the murder of Laci Peterson" -- and contained Scott Peterson's blood in the cab.
In the filing, the Stanislaus County District Attorney's office rejects Peterson's request to have his bronze-colored truck returned to him.
"Such evidence is relevant and admissible here in that the people contend that the pickup truck was an instrument used in the murder of Laci Peterson," the prosecutors say in some of the most detailed information about their case to date.
CNN.com has the details here.