Days later...
After days of being grounded and scolded for stowing away on Manhunters ship I was allowed out into the world where I learned a few things.
1. Everyone is older
2. Bats is on his 3rd Robin so we have a Nightwing and a Redhood
3. Even though time has moved forward Cadmus hasn't been broken into yet so Super Boy is yet to be freed
4. The Justice League is scary good at illegally hacking government systems to give people new identities
5. My name is now Megan Marres ( little on the nose)
I was given a room in Mount Justice like the original where I am meditating on what to do.
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I am in an office with filing cabinets sprung everywhere with me's running around with papers. In the meeting room there are 5 of me discussing what to do.
"And those are the reasons to kill the Joker, any questions?" The me presenting wraps up her presentation.
"I like the idea and using a gun to kill him that will be stolen from a thug in Gotham makes sense to throw off anyone investigating his 'murder'" one of me says as she uses her fingers to show quotations.
"Let's not forget that it won't be the average gcpd detective investigating but it will most likely be the bat doing it" a different me said
"Logically if we use a random trash bag to cover our hand when we pull the trigger it should prevent DNA and finger prints coming to us" I say
"Gross. You're thinking of using a used one to have less of a trace" the presenter said.
"Well since we are in agreement we will put it to a vote." The me who brought up Batman said
"Do we have to, we are all the same person. This idiot thought it would be funny to do this."
The copy of me points to myself as everything turns to smoke.
"Had to do it once"
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With my mind made up and a plan to kill the Joker in my heart I walk out of my room. As I walk I see my uncle in the kitchen.
"Hey uncle J'onn I'm going to explore for the day"
Before he could get a word in I density shift through the mountain toward Metropolis.
Now why would I go to Superman's terf if I want to kill Joker? Simple to throw off anyone who is following me keeping my intangibility active staying invincible as well after 5 minutes of flight I dive into the ground to turn around and go to Gotham.
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Let me tell you that flying for half an hour underground can be disorientated even when you read a ridiculous amount of maps both worldwide maps and local maps and have the equivalent of a perfect GPS in your brain.
I shapeshift into a person at random and appear from a bathroom for plausible deniability.
Walking down alley after alley I grabbed a big enough piece to wrap around my hand, now all that is left is to find an idiot with a gun who will be giving it to me.
I bearly had time to finish my thought before a desperate junkie with a 9mm hoping to get enough for his next fix. Reading his mind and having him fall asleep with the last 10 minutes being forgotten I now had 4 bullets and a gun to shoot them ( apparently he use a few to get out of a tight spot with some cops).
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Finding the clown prince of crime was easier said than done but when your henchmen wear clown make up you can't be unfindable. Reading some of the goons minds I found his higher level minions who knew where he is.
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Joker is in an abandoned chemical facility.
When I find him he is dragging a woman as she is screaming, through the rafters above the vats of chemical. It takes my a moment to connect the dots.
'That's Harley Quinn' with a panicked thought I line up a shot to blow Joker's brains out.
BANG
The gun went of, but before it hit he dodged the bullet. Looking to where I am I take a second shot only for him to jump out of the way as he cackled.
"Who might you be? Bats don't use guns, so you just some schmuck?"h
'I have to get closer to kill him' I jump off the support beams to the rafters where Joker is.
"Oooooooo, the silent type not bad but I already have that role filled with the bat." He says as he pulls out his prop gun that fired out flags with text spelling "BANG" toward me.
' I can't do anything super related or Quinzel will tell the police, and I can't just erase her memory cause of the chance Manhunter might check her memories. I am going to kill the Joker but I won't kill an innocent.'
As I think this I dodge the flags with minimal movement trying to limit my speed as well as curve them slightly.
"Oh, a skilled one eh? Well I'll tell you that my fighting style is quite shocking." As Joker brandishs a joy buzzer.
As I close the distance I grapple, kicking him between the legs.
"AAAAAAAAAAAAA-".
He begins to scream only for me to shove the gun into his mouth and pull the trigger.
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Harleen Quinzel pov
'Joker brought me to "where it started" he said, little did I know that he was going to throw me into a cocktail of cancer-inducing chemicals. He dragged me to the rafters above a vat of acid. I was trying to break free from his grasp. I was screaming until I heard a gun shot. I looked where Joker looked and all I saw was a silhouette.
My ears were ringing I knew Joker was talking but I couldn't understand anything. More gun shots followed by electricity.
I went into deeper shock after something wet and squishy hit my face. It took me a minute to register what it was and after I puked.
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Megan pov
Blood went everywhere, the body formally known as the Joker fell back. As I look back, Harleen had her mind in a fog, most likely due to shock. I slowly walk to her with my hands up and my gun in my pocket. She doesn't react. I gently grabbed her and walked her to a safe place. Ironically enough the cops show up to the scene.
I run to an alley to disappear.