The house that Brass and co bust through looking for the killer is the same house that Marlon Waylord resided at in Harvest (2004).
Actress Summer Glau, who plays a friend of one of the murder victims, is well known for her role as River Tam on the TV series Firefly (2002). River is pursued by mysterious blue-gloved men over several episodes. The murder victims in this CSI episode also wind up with "hands of blue" from touching freshly-painted railings.
In the adult store at (about 19mins) Grissom pulls out a "Hot Blooded" art card. In the Bones series, "Hot Blooded" is Brennan and Booth's theme song (and Emily Deschanel sings it pretty well!)