Unfortunately, there are several people that make money scamming people in this way. I have seen several on Craig's list, usually the property owner is "out of the country" for some mysterious reason. Even though the scams vary a little, the unsuspecting person is asked to send money to someone they don't know. The age old adage is still good advice today, "If it sounds too good to be true, it probably is". One good way to flush these people out it is to ask specific info about the area like, how far from the hospital is it, or what school district is the house in? They will not be able to answer these types of questions as they don't really own the house they are trying to rent.
Hope that helps?