Mark Hacking has been arrested for aggravated murder in the Utah case of his missing wife Lori Hacking. This is not much of a surprise considering authorities called off the search for Lori Hacking this weekend, saying that information they obtained from the husband made a volunteer search unnecessary.

Will he face the death penalty because his wife was pregnant? Could he be guilty of a lesser crime such as manslaughter because the killing was committed in the heat of passion ? Could he be not guilty at all because he is insane or because the killing was committed in self-defense or because it was a suicide? Or did he not kill her at all, but merely disposed of the body?

More facts are needed before coming to any conclusion. Fox News Legal Analyst Lis Wiehl and I will be discussing the new developments in the case, as well as the Scott Peterson case, tonight on Hannity and Colmes around 9:30 ET.