At the beginning of the program, while at the crime scene, Pete the construction guy is asking if the tub, a "Godiva 3000", could be reused since it is so expensive. The tub shown is a claw foot, which is in fact a more expensive type of tub than a standard type of tub. Pete goes on to say the building is subsidized housing and the government needs all money accounted for. Since subsidized housing is contracted on a low bid process, subsidized housing would never use expensive items like a claw foot tub.
Booth says that the victim has a "living will" leaving all of his assets to one of his two wives. A living will does not serve to distribute assets after death; rather, it is a directive to medical personnel regarding treatment in the event of the patient's incapacity.
The team determines the victim had an artificial hip, but Bones fails to ask the victim's wife about it when interviewing her, which would obviously help I'm determining if he was, in fact, the victim.
Brennan once says that sex is inevitable among adults and once that all mammals need it. As an anthropologist, Brennan would be aware of asexuality, a sexual orientation in which the individual is not self-motivated to engage in sexual activity. This is not the same as celibacy, in which a person with sexual desires chooses not to act on them; an asexual person does not have sexual desires to a sufficient degree to seek to engage in sex with others. Granted that Booth and Rebecca are both sexual adults and not asexual ones, sex does not have the species-wide inevitability that Brennan mentions and then insists on. No remotely competent anthropologist would make the statement once, let alone twice.