Sarah Lunde's Killer Confesses RUSKIN (WUSF) - Hillsborough County Sheriff David Gee said Sunday that David Lee Onstott has confessed to killing Sarah Lunde. The 36-year-old Onstott was charged with first-degree murder.

Gee says Onstott argued with Sarah, put her in a choke hold and killed her. Investigators found Sarah's partially clothed body in an abandoned fish pond Saturday. Gee said Onstott "went to great effort to keep her body from being discovered."

Sarah's brother had come home early April 10 to find the front door wide open and his sister gone. He told detectives that Onstott came by shortly after, and took a half-empty beer bottle before leaving the house in Ruskin.

Both Sarah's brother and mother initially assumed Sarah had gone to a friend's house. She wasn't reported missing until April 11.

Onstott is a convicted rapist who once dated Sarah's mother. He has been held without bail in the Hillsborough County Jail since Tuesday on unrelated charges. © Copyright 2013, WUSF