Select a location far away from where you live. At least a few states away from you; at most, possibly in another country, one with more lax criminal justice infrastructure. Tell nobody you are visiting wherever you go. Take a trip out into the rural countryside and case the houses - who lives there, families, single residents, young men, old men....women and children, etc. Your approach depends on your desired prey: do you want to just kill a helpless old person, or do you want a challenge? Once you have selected your target, cut the power and phone lines to their home in the night while they sleep. You may confront your victim once your mask is on; you want the last thing they see to instill absolute terror into their hearts so that their soul will taste better to the thing that keeps whispering instructions to you in your head. Once they have been killed, recite The Ritual over the body...one down, five to go...