SALT LAKE CITY -- A few days after they pulled her body from the Jordan River, Annie Kasprzak gave investigators a major clue, penned just before she was killed.
According to a search warrant affidavit, Kasprzak's day planner had a notation on March 1, 2012 stating, "(boyfriend) finds out."
Kasprzak's parents explained that was when the 15 year old told her boyfriend she was pregnant with his baby. However, in the document, her parents told investigators that they had recently made Kasprzak take a pregnancy test, and the results came back negative.
But authorities also found journals Kasprzak kept, according to the documents, which showed she believed her boyfriend “did not want the baby that she told him she was carrying.”
"We want him to be certified as an adult,” said Salt Lake County District Attorney Sim Gill.
Based on all the facts of the case, Gill wants Kasprzak's boyfriend, who was 14 years old at the time of the murder, to be tried as an adult.
On Wednesday, he made his first court appearance in Third District Juvenile Court. The teen, now 17, is facing charges for murder and obstruction of justice.
“That's the option we are exercising,” Gill said. “Just to be consistent with what the nature of the crime here is, which we take very seriously.”
While it took investigators years to make an arrest, the court documents show their evidence was beginning to mount in the days following Kasprzak’s death.
On March 14, investigators asked Kasprzak’s boyfriend to provide them with his shoes. He obliged, but then explained that they may find some of Kasprzak’s blood on them, left there by a bloody nose she recently had.
Later that evening, court records stated that the teen sent a text to a friend saying, “I need you to do something for me really bad.”
Investigators discovered he then asked a friend to lie to authorities, claiming Annie had suffered a bloody nose when the three were together.
“The cops might come back to your house. I need you to tell them that Annie got a bloody nose…I need you to tell them that so I don’t get blamed,” another message read, according to the documents.
Two days later, on March 16, the friend admitted to investigators that he did not see Annie get a bloody nose. The court records showed authorities tested the friend’s home for her blood, but did not find any.
In June of 2012, authorities learned the blood on the shoes belonging to Kasprzak’s boyfriend was that of Annie Kasprzak.
Because prosecutors want the teen to be tried as an adult, a judge ordered he undergo a psychological evaluation, first. He is scheduled to reappear in court in November.