It's always shocking when you hear of someone who has murdered their spouse. But there are signs that a husband or wife is the killing kind, says Dr. Robi Ludwig, psychotherapist and author of "Till Death Do Us Part: Love, Marriage and the Mind of the Killer Spouse."
Below are some traits you should beware of in your significant other.
Intense controlling behavior
Explosive feelings of rage
Difficulty forming intimate relationships
Poor impulse control
Inability to understand your feelings
Absence of emotions like remorse and sympathy
Searches out easy pleasure (i.e. a thrill seeker)
Intense feelings of victimization and rejection
Devalues human life
Pathologically idealizes partner