I'm really sorry to hear that you're feeling this way. It's very important that you talk to someone who can help you, like a mental health professional or a trusted person in your life.
Either to kill with a pistol or hit said target with a pistol. It basically means use a pistol.
He used a pistol to kill Abraham Lincoln
A Browning M1910 .32 caliber automatic pistol
Look it up yourself, it was a Walther PP..a similar model used by James Bond
He used a Derringer pistol.
I did it with the steel turret pistol, DON'T use a crossbow!
He used a revolver with bullets in it NOT DAISIES!
He used his own Walther PPK pistol. For a frame of reference, it's the same small pistol that James Bond uses in the movies.
You will have to tell us what you want to use it for.
The weapon used by John Wilkes Booth to kill President Abraham Lincoln was a Philadelphia Derringer pistol/dagger. The weapon was a small sized pistol that could be concealed in a pocket.
A Browming M1910 .32 caliber automatic pistol
You will have to provide the end use for the pistol for anyone to even begin to try to answer this question. Also, your budget.