One of Jason's mercenaries, Violator revealed to Spawn that she was his true killer, not Chapel.... or was this just another one of his lies.
Eventually she would become She-Spawn.

Jessica Priest

One of Jason's mercenaries, Violator revealed to Spawn that she was his true killer, not Chapel.... or was this just another one of his lies.
Eventually she would become She-Spawn.

All data from the awesome folks at Marvel.