WILMINGTON, N.C. — Investigators say they had a taped confession from Curtis Dixon and that he taped a re-enactment of the murder of a student at UNC-Wilmington.

Investigators described Dixon, 21, as an obsessive stalker who murdered 18-year-old Jessica Faulkner when she refused a romantic relationship with him.

"Jessica was bothered by the attention Curtis was showing towards her," said Capt. C.E. Willis of the UNCW Police.

As a result of Dixon's suicide in prison recently, prosecutors publicly released information Thursday that would have come out at his trial.

Dixon told police that he invited Faulkner into his dorm room at UNCW where he struck her on the "back of her head," "began strangling her," "sexually assaulted her," and "injected her with a sedative called Hydrocodone."

He slept in the room with her body and called her father the next morning -- who then called police.

Desiree Randolph, Faulkner's mother, addressed the media Thursday for the first time since her daughter's death.

"She was a beautiful person inside and out with a smile that would light up the room," Randolph said. "I sincerely hope that there will be many changes made to help prevent such a horrible and senseless tragedy like this from ever happening again."

UNC-Wilmington officials also explained why they accepted Dixon as a student. Chancellor Rosemary DePaolo said Dixon lied about being home schooled, lied about his criminal record and never disclosed that he attended UNC-Charlotte or the N.C. School of the Arts.

"Had they been known at the time, I doubt Curtis Dixon would've been admitted to UNCW," DePaolo said.

DePaolo also said his father James Dixon, who was executive assistant to the Chancellor at UNC Charlotte faxed the application. She didn't know if he contributed to the false information.

WRAL called UNC-Charlotte to ask if James Dixon's involvement with the application would be investigated further. School officials would not comment because it's a personnel matter.

James Dixon resigned in July.