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JEFFERSON CITY, Mo. — A disturbing journal entry, written by Alyssa Bustamante in which she describes how it exhilarating it felt to kill her nine-year-old neighbor Elizabeth Olten, was read aloud in court Monday during Bustamante’s sentencing hearing.

Bustamante admitted last month to strangling, stabbing and slitting Olten’s throat.

The journal passage, presented in court Monday morning, was dated Oct. 21, 2009, the day the then 15-year-old Bustamante, who is now 18, stabbed and strangled Olten in St. Martins, Mo., a rural town just west of Jefferson City.

The Associated Press reports the passage read: “I just (obscenity) killed someone. I strangled them and slit their throat and stabbed them now they’re dead. I don’t know how to feel atm. It was ahmazing. As soon as you get over the “ohmygawd I can’t do this” feeling, it’s pretty enjoyable. I’m kinda nervous and shaky though right now. Kay, I gotta go to church now…lol.”

The entry was scratched out, but a forensic expert deciphered the writing.

Bustamante sat silently while the entry was read aloud, occasionally glancing at those testifying about her, often looking down or to the side.

The victim’s mother, Patty Preiss, said her nine-year-old daughter left her home about 5 p.m. after begging to go play with Bustamante’s younger sister. Elizabeth was supposed to be back for dinner at 6 p.m., but her mother never saw her again.

FBI agents seized the journal from Bustamante’s bedroom during a search of her family’s home the day after Elizabeth went missing.

Bustamante suggested to FBI and the Missouri State Highway Patrol officials that the girl had probably been kidnapped and that whoever had done so deserved to be convicted.

The Associated Press reports that at one point, law enforcement officers discovered a hole in the ground in the shape of a shallow grave near Bustamante’s home. They testified that Bustamante acknowledged digging it but said she just liked to dig holes.

Later, Elizabeth’s body was found concealed under leaves in another grave in the woods behind the Bustamante home.

Bustamante’s admission last month was part of a plea agreement with prosecutors who dropped the first-degree murder charge that would have sent her to prison for life without the chance of parole. She instead agreed to plead guilty to second-degree murder. The amended charge is punishable by 10 to 30 years in prison or life with the possibility of parole.

FOX 4 will continue to follow the developments in Monday’s sentencing hearing.