I am very, very vaguely playing around with the concept of writing a novel about a killer. I was daydreaming how such a person might go about killing various people (this IS fiction!) such as a kindergarten student, an ex-wife or husband, a current/former co-worker, a friend (like if s/he had a terminal illness and needed to die to avoid pain), the person that molested him/her or their child, a scammer who conned him out of thousands of dollars, etc, etc. I know that anyone can be killed. That's not the biggest issue. The biggest issue is getting away with it. Everything else is a matter of resources. For example, if you wanted to kill a president and you had the resources, you could bomb a building s/he is visiting, cause a plane to crash into the building s/he is in or you could compromise a member of their security detail such as by kidnapping their child and threatening to kill the kid if the bodyguard did not kill the president. I was wondering how does John/Jane Doe average citizen get experience with weapons? I can see a pistol and a knife. I don't really see how explosives or esoteric poisons would work unless the character is current/former military or an expert in a field that comes across poisons like studying snakes or botany. I don't want to "cheat" and give them a convenient explanation for knowing how to build a car bomb like having a relative or friend in the military that is dishonorably discharged and sells his knowledge to the character. I don't want them to have to depend on someone else providing the bomb, for example if you work for the cartels and the kingpin wants you to take this car bomb that was assembled by person X and put it on an informer's car. I assume the average person who wants the car to blow up is going to have to run some type of petrol soaked bed sheet from the gas tank and set fire to the end to achieve that result when the flames each the gas tank - KABOOM!! Of course, the logistics of doing all this while the driver just sits there is a difficult barrier to overcome. Hmm....maybe the person is homeless and living in their car and the killer is pissed off at the guy hogging the best parking spot on the street? If he's sleeping when the killing occurs.....workable. As a child in Boy Scouts I fired a .22 caliber rifle....say 20 times each over 4 weeks. That's my only experience with guns. I don't remember ever hitting the target - I must have at some point but I don't remember it. How does the average person who is planning to become a criminal become proficient with weapons? You don't want to go to the gun range because you don't want people to know you have a weapon and that you know how to use it. You live in an urban setting so you don't have deserted fields to wander around in shoot at beer cans or other homemade targets. I kind of suspect a character who has no experience with weapons at all would be shocked at the recoil from the gun, probably drop it in further shock and maybe even miss the target due to distance or their hand shaking in terror as they took aim. I could see someone with a basic knowledge of infections and disease collecting dog poop or goose poop and then dipping a knife into the jar to coat the blade in poison. Then when the killer uses the knife to stab someone, you have a double threat - the stab wound itself and the potential for the crap on the blade to cause life threatening infections in the victim. Other types of poison....I can't really see how John or Jane Average citizens get their hands on it. If my character kills someone like an ex-wife/husband, they are going to be one of the top suspects when the investigation starts so this is one of the reasons why I want their proficiency with weapons to be hidden. Just to summarize, this is a lone wolf type of killer who will kill occasionally for enjoyment. He won't be addicted to killing. He's not crazy and running around stabbing everyone he sees. He's the *LAST* person you would ever suspect of being capable of killing someone. I don't exactly know all the people he will kill, he could go around living his life, killing once in a while because he wants to and then he goes through a divorce and he's got a mad on for the ex and he has the experience to kill the ex and get away with it. Thanks all!