Rumer Willis by Theo Wargo/WireImage.com Rumer Willis by Theo Wargo/WireImage.com
Rumer Willis will guest on CSI: NY this season, playing a young woman who shares a name with Gary Sinise's Mac Taylor. The CBS procedural's milestone 100th episode, airing Nov. 19, finds Taylor's team looking for a serial killer targeting people with the name, a network rep confirms. The casting scoop was first reported by EW's Ausiello. Late last month, Willis - daughter of Bruce and Demi - scored a role on Army Wives. - Matt Mitovich