I am sure that the Dubai police are a reputable force but they need to stop talking to the media about the case till they sit down and restudy all the evidence. Right now since the body was found they have changed their reports of how and why at least 5 times. This is not professional and I think it is due to pressure from the media to come to a conclusion. A conclusion that it was mossad. Whichever person or group of persons did it...it was a real professional job considering all the cameras and security. Yes it could have been mossad but it could have been another group of people...after all this guy was living in a tough underworld. If it was mossad then they have let it be known that their fingers are long enough to get rid of those that do bad to Israel.
from the article: Report: Hamas chief survived two earlier assassination attempts