Starting

 It is a very crucial point in these killer’s life is the sudden act when out of nowhere they get a chance to start killing, they start killing by availing that chance and that develop the taste serial killers which are termed as “ they DISCOVER themselves accidentally by killing one person” by popular media,
1. It started for all of them as they just experienced one but continued Charles Starkweather wanted money to buy a gift for his girlfriend so killed the first one near a gas station in the process and later started to repeat it
2. Edmund Kemper Started by Killed his grandmother and grandfather as he was angry with his mother and then never stopped until caught
3. Ted Bundy wanted to revenge His first girlfriend Diane Edwards so he picked up her look alike
 4. Aileen Wuornos needed money so she starting working as a prostitute, she killed for the first time when his client beat her badly and she did it to save her life , but later she continued and killed 7 men in total