Answer:
Darth vader is Anakin Skywalker after being beat by Obi-Wan Kenobi on Mustafar. Obi leaves him to die, and the emperor finds Anakin, and makes him into Darth Vader. Anakin was married to Padme Amidala, and she died in child birth. She gave birth to twins, one was Luke Skywalker and the other was Leia Organa. The jedi take leia and luke and hides them from Vader, so he never sees his kids. That's why when he was near Luke he could sense him.
Step-by-step explanation:
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