Discretion is advised.

This is 10-minute murder.

Often, the life stories of serial killers begin with tragic, dysfunctional upbringings.

But the beginning of Sean Michael Great's childhood was perfectly normal.

Born in 1976 in Marion, Ohio, he did struggle in school, was held back a grade, but he was also sporty. He was a social kid

who got along well with others. Then, as Sean grew older, things began to change. When Sean was

six years old, his parents got a divorce, and five years later, his mother Teresa abandoned

her two children. She left them behind in Ohio with

their father and moved to Kentucky to live with her new boyfriend. Sean spent his teenage years

resenting Teresa for this decision, and he indulged in elaborate fantasies about killing his mother

and making her pay for what she had done.

While Sean and his brother were living with their father, Sean began attending River Valley

High School. At first, he continued using sports as an outlet for his feelings and became

one of the school's best baseball players, until he broke his arm.

When the fracture was x-rayed, doctors discovered a tumor which required immediate surgery.

After that, Sean never played baseball again.

From that point, Sean's mental health took a turn.

One of his high school girlfriends remembered that he went through

severe depressive episodes where he would lay on the couch for days. Once the episode was over,

he'd continue with his life like nothing ever happened. Despite this, Sean never had a hard

time getting a date. His school friend, Amy Smith, said, Sean was charming.

He was always smiling, and he had those big blue eyes. All the girls liked Sean.

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