Ask Greta

By Greta Van Susteren, Harriet Barovick, Ann Marie Bonardi, Beau Briese, Rhett Butler, Christina Lewis, Ellin Martens, Benjamin Nugent, Ryan Schick, Heather Won Tesoriero, Kadesha Thomas

Q: The FBI has assigned the Chandra Levy case to its major-crimes unit. Is it possible to prosecute a homicide without a body?

A: Yes, but it's a lot harder. Recent cases, like the conviction of grifters Kenneth and Sante Kimes for killing New York City widow Irene Silverman, have involved circumstantial evidence. But you also need to show where a crime is likely to have occurred--a problem in the Levy case. The putative crime could have happened in D.C., Maryland or Virginia. Which state could prove a crime occurred there?

Greta Van Susteren is host of CNN's The Point