Authorities identify Raymond Buck as a possible new suspect in the 1996 murders of Lin and Megan Russell, according to reporting by the Daily Mail. The girls were attacked as they walked home from a school swimming gala in Kent. The articles say investigators have linked Buck to the case through the existence of a suicide note left behind, described as “chilling” in the coverage. The reports do not indicate that Buck has been convicted, but rather present him as a person of interest in the ongoing investigation. The information is framed as a development in attempts to re-examine evidence connected to the killings of the two sisters. The reporting also reiterates the timeline and location of the attack: the Russell sisters are believed to have been murdered in 1996 after leaving the swimming event and heading home. The articles emphasize that the note and related details are central to the allegation that Buck may be connected to the crimes. No additional outcomes or court determinations are stated in the provided excerpts.