Family and friends of Erica Blasberg say they are baffled by the 25-year-old golfer's sudden death Sunday inside her suburban Las Vegas home.
Greg Allen, Blasberg's former coach at the University of Arizona, said Erica was a "happy-go-lucky kid" whose death has stunned those who knew her best.
"I'm shocked," Allen said in an interview with FoxNews.com on Wednesday. "We lost a part of our family."
A native of Southern California, Blasberg was in her sixth season on the Ladies Professional Golf Association tour.
Police are investigating her death after her body was discovered Sunday inside her three-bedroom home in Henderson, Nev. Authorities said they found the body at approximately 3 p.m. after responding to a 911 call.
Police are not discounting suicide, said Henderson Police Department spokesman Keith Paul. No cause of death has been disclosed.
Blasberg's father, Mel, told the Riverside Press-Enterprise in California that his daughter may have committed suicide. But in an interview with FoxNews.com on Tuesday, he said the circumstances surrounding his daughter's death "don't add up."
Blasberg, of Corona, Calif., said his daughter, who had just returned from the Tres Marias Championship in Morelia, Mexico, had been in high spirits in recent weeks.
"It doesn't add up, knowing how excited she was about playing," he said. "She was at the prime of her life and in a career she loved."
Blasberg lived alone in her home, which she purchased three years ago. Her father said authorities told him that the 911 call was made by a local male golfer. Police have not released the caller's identity.
Blasberg said his daughter had been planning to travel to Alabama on Saturday to compete in Monday's qualifying event for this week's LPGA tournament in Mobile. He said he last saw Erica on Thursday, when he visited her home, and that "she couldn't have been more up." Her bags were packed inside her car, he said.
Caddie Missy Pederson, who would have carried Blasberg's bag Monday, received a text message from her early Sunday, saying she would not be attending the Alabama event, according to the New York Times.
Pederson reportedly replied to the message, asking Blasberg if she was OK, but never received a response.
Blasberg won six college tournaments in two years. She was named Golfweek's 2003 Player of the Year after finishing the season No. 1 in the rankings. She also was 2003 NGCA Freshman of the Year, Pac-10 Player of the Year and competed on the victorious 2004 Curtis Cup team. She enjoyed a stint as the face of Puma Golf, appearing in a television commercial, and also represented Cleveland Golf and Casio.
Blasberg's dedication to her sport was commendable, her father said, noting that she would attend practices and tournaments even when she was ill.
"Never ever has Erica not gone to an event -- amateur or professional -- even if she were deathly sick," Blasberg said.
By outward appearances, the pro golfer seemed optimist about her future in the sport.
"It's exciting," Blasberg said of her sport to a group of students two weeks ago at Universidad Latina de America in Mexico. "It's fun to see a young person play because they just, they have so much more excitement in the way they play. They take chances and they challenge things."
The Clark County coroner's office told FoxNews.com that a cause of death will not be released for another four to six weeks.
A May 19 memorial service has been scheduled for Blasberg.
"This is a horrible story about a wonderful girl and we need answers," her father said. "As a professional golfer, you have your ups and downs, but Erica was intrigued by the challenge."
Fox Sports contributed to this report.