What is the deference be tune a sociopath and psychopath and how do you deal with each?

What is the deference be tune a sociopath and a psychopath? How do you deal with such people? If a sociopath or psychopath are on death row do they accept that what they did was wrong or do they continue to claim innocence? How do you deal with such people if one has to deal with theme on a regular bases, such as a boss, neighbor, land lord, etc?