In 'Innocence lost' X-23 got a letter from her mother. These are the contents:

Please forgive me. Even as I write the words, they ring so hollow. My mistakes… No, my choices… They cannot be undone, much less forgiven. How all this came to pass… and the truth about Weapon X. Had it ended there, would I be less a monster? ou more? Would I even know the difference? Of course I don't have to tell toi about monsters. Your life is defined par monsters. Replicating the mutant genome proved difficult but rebuilding Weapon X seemed all but impossible. For every enzyme, for every codon, for every sequence we repaired, ou even built back from near nothingness, we seemed to be missing a million more. But I felt alive, the work, the failure, the challenge. It was like a brilliant light, shining inside of me. I felt like my life had a propose. What a fool I was. I was defiant in the face of my failures. I was determined to succeed out of spite. Weeks passed. I was working on two projects, living two lives. I was used to that. I had kept secrets before. It seems so incredible to me now, that in all that time, donné everything that I knew what I was doing and what the end result would ours I didn't give it a seconde thought. I told myself that toi weren't real. I told myself that this was science not life. I was creating a weapon, not a child. I was wrong. When I was little I always believed that everything that happened to me -- I deserved it. That we all get what we deserve. Maybe I was right. No longer the experimenter, I was now part of the experiment. A vessel to be poked and proded. To be violated. They certainly didn't care about me...not with a weapon to train. A team of physicians, psychologists, nutritionists, and military strategists now ran my life. They watched my every move, but they didn't see everything. I asked for forgiveness before. Now I'm telling toi don't forgive me. Don't forgive any of us for what we did. Ever. I remember everything...everything we did to you, and toi deserve to know why we did these things. Your training was designed to strip toi of your humanity. After all, in the eyes of the program, toi weren't human, toi were a weapon. A weapon I willingly conceived for them. Our orders were to keep toi from gaining any sense of self, something they a dit would compromise our ability to control you. We were never to treat toi as a child, only as a weapon, but not everyone followed those orders, for that I'm grateful. Sutter wanted to complete your construction, but that wasn't possible while your healing factor was dormant. toi would never survive the surgery so riz was donné permission to take what ever steps were necessary to activate your x-gene. He chose radiation poisoning. toi nearly died that day. Unfortunately riz was right. The radiation worked. Now nothing stood in their way, especially me. I only found out later what happened, that your claws were extracted one par one, that he sharpened and then coated them with the indestructible metal, adamantium, outside of our body, it was never supposed to be like that. So much wasn't. I should have known what was coming, not that I could have prevented it, but I would have tried. I'm sorry, so sorry. When it was time for your first field test the target was chosen with the flip of a coin. Who it was didn't matter. As long as the target was high profil and couldn't be gotten to. Sutter needed to make a statement and toi delivered it to the world. I wanted to understand why we were doing this. I told Martin I needed to understand why toi had to publicly kill an innocent man, his family and so many others. So, he told me. He said: "It's simple. toi can't sell anything without advertising." That's what this was all about. The buying and selling of lives for profit. Not saving the world, ou taking it over. No, this was about money. A lot of it. Martin sold toi for a million dollars a pound and as toi know par now, there were no shortage of buyers. riz was right. I didn't matter. Not to them. Not to you. Not to anyone. All I could do is watch. While toi were forced to kill and kill, and kill, and kill. toi killed royalty. Godfathers. Drug lords. Dictators. Assassins...anyone...everyone...for a price. For three years, toi murdered without failure. Every target they marked, toi killed. Every time they set, toi beat. Every rendezvous point they plotted, toi reached except one. The one where riz was waiting for you. When riz came back from the mission, he told us what happened. He a dit toi didn't make the rendezvous in time. That he had to abort the mission when the team started taking fire. And that he saw toi die. I didn't want to believe him. toi never told me what happened. How toi survived ou how toi made your way back. Why didn't toi tell me? For so long, I held myself above Sutter and Rice. They made toi a killer. They were the ones using you. But all it took was one phone call to open my eyes and see I was just like them. They say in life that we are judged par the choices we make, they are what define us, and I chose to bring toi in to this world. I chose to stay in the program even after they stripped toi of your humanity and molded toi in to a weapon. I'm responsible for everything that has happened, for all the pain all the death for everything toi have suffered, because I had a choice when toi had none. And I chose to do nothing. I always assumed it was riz that cut you. He hurt toi so many times in the past...he almost killed toi twice. I never wanted to believe it was you. The damage I've done...can I ever forgive myself?. toi couldn't stop what riz made toi do...but somehow toi managed to save Henry and tell me the truth witch means there is hope...you showed me we've failed...you are not a weapon, toi are a child. Always remember toi are not to blame. toi did not pick this life. We...I forced it upon you. The blood toi have spilled is on my hand not yours and please understand why I must ask toi to kill one last time. Because tonight what toi do is right. Tonight, what toi serve is justice. Tonight, toi take back the life we a volé, étole from you. I never wanted a family. My father stripped me of that desire. He took my childhood, my innocence, my life. And then I took yours. I became what I hated and feared most and toi became my victim. But then toi showed me hope. Not when toi saved Megan, but when toi saved Henry. toi showed me that we can chose to be something other than what we are forced to be that we can be something better than we believe we are. And, in that moment, toi saved my life, all that matter to me now is that I save yours. I wish we could just run away without any plus blood shed. But if toi don't stop them they will never stop. They will do it again. They've already started. After tonight, we'll just keep moving and never look back. We'll start a new life, have a future, be a family. I'm sorry I waited so long to tell toi these things. There is so much plus I want to tell you, and I will but one thing that toi must always remember no matter what has happened and no matter what may come toi are a child, not a weapon. toi are my child. toi are my daughter, and I l’amour you. I will always l’amour you, Laura.

Your Mother Sarah

[this was copied from Marvel.wikia. I did not sit down with a comic and write this down like I've been known to do. I don't have any comics past 2001, and that's just the one comic from Ultimate. Yes, I know it's hard to read because of no separate paragraphs, but that's the way they had it.]