Slash's character Blackout is a skilled assassin who's had her eye on Alexis for some time as a potential recruit for The Widows, the organization she works for (at least, in a kind of pseudo cross-canon Slash and I have). However, Blackout thinks that Alexis is sorely holding herself back by doling out vigilante justice instead of doing contract killing of any type, so...she removes the source of that hangup.