The Mindf*ck Series by S.T. Abby Books 1-5 (Premium Quality)

They took too much.
Left too little.
I had nothing to lose...until him.
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I didn't expect him.
I didn't want to fall in love.
But I can't let him go.
Logan Bennett makes the world a safer place.
He's brilliant.
He's a hero.
He locks away the sick and depraved.
But while he's saving lives, I'm taking them. Collecting the debts that are owed to me.
Ten years ago, they took from me. They left me for dead.
They should have made sure I stayed dead.
Now I'm taking from them.
One name at a time.
I've trained for too long.
I've been patient.
I can't stop now.