[freshair]

Unless the hitman has decided to retire, it's probably only a matter of time before they catch him using good old fashioned detective work. For instance, investigators might be able to catch the hitman in a sting operation, if they know what marketplace the hitman sells his services on.

[krisroadruck]

I feel like you rather overestimate the prowess of law enforcements ability to solve murders, especially non-slam-dunk ones with a witness and an obvious connection between the murderer and victim.

[freshair]

Maybe so, you could be right. But if this man is taking contracts from the general public, I think that must be a good lead.