Some DNA must have been found on the victim or else why would they test the team?
First level of test is blood type, if the blood type of a team member does not match that of the sample then that guy is eliminated. The in depth comparison should be back soon and I think there is a good chance that none of the team members will be indicated. If that is so
If they don't find DNA from members of the team, they should get their money back.
DNA can last for a couple of days. They may find DNA from multiple sources but it could be from days earlier.