Dubai police have now discovered more people involved in the murder of Mabhouh, the tally at present (direct and indirect, from murderers to logistics):
12 - British
6 - Irish
4 - French
3 - Australian
1 - German
The travel movements of many have been traced, with some heading off to Israel-friendly Iran, while many booked hotels and air travel with credit cards issued by the Meta Bank in the USA. The EU's got slightly annoyed that other EU members' passports have been 'misused' but all that's happened is that various Israeli ambassadors have been invited in for tea and a cosy chat to try to explain what happened. As if they'd say if they knew!
There appears to be evidence of electrocution on Mabhouh's body, but the initial feeling is that he was suffocated. Perhaps knocked out with a Tazer or two, then suffocated so that, with his medications arranged beside him, he just looked as if he'd died in bed from illness-related causes. If Tazers were employed, it might point to them coming through in a diplomatic bag or being onsite, ready for use. It may be they're possible to disguise in flight luggage, but one wouldn't want to take a chance, so dipbag is my favourite, with a facilitator in Dubai to bring them to the hotel.