Men by nature only kill women they're involved in out of spite when they've been left for another man, cheated on or divorced....etc, think of the OJ Simpson murder as a classic example.
In every murder the motive is the biggest give away, and Kelly was well invested to see the victim dead, not Titus.
The PA was just a side piece for him that's all. Titus took the blame to save Kelly out of love and out of guilt for cheating.
