What to do?

Consider poison, there is no gauentee way to get blood out undectably. So try ether insulin, which well do great on putting them both in to sugar shock and just shuts down there system. Chances are the corner will see it as mass kidney failure, just have to worry about how its too people right next to each other that had the same problem. Another one if there smokers and good old nictine, this stuff is highly poisonious and extreme hard to detate. Just marinate about 5 cigs in water, for about a week. Then strain, let dry, add enough water to keep it moist the shot into the system. Heart attack, after motabilation making it darn hard to detect. Ether way the up close and personal gun play method never works well unless its a stranger, actually murdering anyone your close to doesn't work well. You bond to be a suspect. So if you can't get someone else, its better to bind your time and get them one at a time with one of the methods I mentioned, or by another undectable method. No use keeping the carpent clean if your not going to be there to enjoy it. Of course if you could get them to lay down a plasitc shef... hehe