Most likely, 'Lover Stalker Killer' isn't a true story. It's probably a work of imagination crafted by the author to tell a thrilling and captivating tale that isn't rooted in reality.
Jealousy is a common motive. For example, in cases where one person sees their lover with someone else, they become so jealous that it drives them to stalk and eventually kill. It's like their love has turned into a possessive and dangerous emotion.
Another example could be the story of Jodi Arias. She was in a relationship with Travis Alexander. She became a stalker - like figure as she couldn't handle the end of their relationship. In 2008, she brutally killed Alexander. Her actions showed an extreme and distorted form of love, where her jealousy and obsession led to a heinous act of murder.
First, create the characters. One is the obsessed lover, the stalker. The other is the victim of the unwanted attention. Then, build the story around how the stalker's love develops into an obsession. For example, start with a simple encounter that makes the stalker fall head over heels. Next, show the stalking behavior gradually increasing, like constantly showing up at the victim's workplace or home. As for the 'killer' part, you can have a trigger, like the victim getting a new partner. This causes the stalker's jealousy to reach a peak and turn violent.
A possible 'Love Stalker Killer Story' could be about a person who becomes obsessed with someone they love. They start stalking the object of their affection, following them everywhere. Eventually, their obsession turns dark and they become a killer, perhaps because they feel rejected or that the person they love belongs only to them. For example, in some fictional stories, a character might be so in love that they can't bear to see the other person with someone else and this twisted love leads to stalking and then to murder.
One warning sign is excessive communication. If someone is constantly texting, calling, or emailing their 'lover' way too much, it could be a sign of stalking behavior. Another is unwanted presence, like always showing up at the person's home or workplace uninvited.
One example could be 'The Stalking of Laurie Show'. It was based on a real - life case where a person's obsessive and dangerous behavior led to tragic consequences. The story likely explored the dark psyche of the stalker who might have initially presented as a 'lover' but turned into a 'killer'.