It was an ordinary day on the executer; Darth Vader was walking down the hall to investigate a rebel the Imperials had captured. When he reached the cell, he slowly walked in. He was silently hoping this time the rebel would give him some information about the Alliance against the empire.
"What is your name rebel?" he asked.
"Marcus Leeroy" he said in a fearful voice.
Marcus was whispering to himself. Darth Vader could slightly hear some of the things he said.
"...Commander Skywalker will be......"
Skywalker
He hadn't heard that name in a long time.
"Who is Commander Skywalker Rebel?"
"I have a name!"
"I don't care what your name is tell me who Commander Skywalker is or I might start considering letting you live"
"He joined the rebellion not to long ago, he used to live on Tatooine, I don't know how old he is, his name is Luke, he rescued Princess Leia from the Death Star, and he destroyed the Death star, please don't kill me, I told you who he is" Marcus pleaded.
Darth Vader didn't care about this Rebel. He slowly choked him until all life left him.
He had a son; he couldn't believe it at all. If he had a son then Padme must not have died on Mustafar. Palpitine had lied to him; he had believed he killed Padme for about 20 years. His rage flowed through him; the only thing on his mind was killing Palpitine. If he hadn't joined Palpitine Padme would be alive right now. And, he could have watched his son grow up. He had destroyed his life. But, he thought there was nothing he could do anymore. He left that cell room wondering how to tell Luke who he was. How would he reply? He had seen his expression when he saw him kill Ob-wan Kenobi. Luke must have had a very good relationship with Kenobi.
"Luke would never join after watching me kill Obi-wan" Darth Vader thought to himself. He would just have to find a way to get Luke to Join him.