Mossad would not need nor would they waste 12 on such a simple hit. If it was Mossad, one or two, in and out, done with. Twelve? It sounds like a polish joke. Six to hold him down and six to hold the pillow. I can't stop laughing.
15 police officers killed in Colombia helicopter crash (Reuters)
from the article: Hamas man's Dubai death was a Mossad-style execution