Narc Lab For Cocaine http://www.dea.gov/druginfo/ds.shtml

http://news.yahoo.com/execution-georgia-woman-postponed-problem-drug-041957443.html

https://www. youtube. com/watch https://www.youtube.com/watch?v=9zkKyTGznqk&index=3&list=PL9Qzzxlo_iJZQhVlJbuWFO_BS8ArB2_9s

https://www.youtube.com/watch?v=DsjasMfD1es

Since the gunman was not in London the week before the crime, he could not be Llewellyn, Merrick, or Halifax. Therefore the gunman is Cross. Neither Merrick nor Halifax, who kept the flat under surveillance, is the innocent bystander, so he must be Llewellyn. Llewellyn knows Merrick, but not the lookout, so the lookout must be Halifax. Merrick, by elimination, must be the planner.