Florida's state attorney said there was no evidence Terri Schiavo's collapse 15 years ago involved criminal activity, and Gov. Jeb Bush on Thursday declared an end to the state's inquiry.

Bush had asked State Attorney Bernie McCabe to investigate Schiavo's case after her autopsy last month. He said he now considers the state's involvement finished.

"Based on your conclusions, I will follow your recommendation that the inquiry by the state be closed," Bush said in a two-sentence letter.

In asking McCabe to look again into what put Schiavo in a persistent vegetative state, Bush had cited an alleged gap between the time Schiavo's husband, Michael, found her and when he called 911. The governor had said the issue remained unsettled.

McCabe said, however, while such discrepancies may exist in the record, Michael Schiavo's statements that he called 911 immediately had been consistent.

"This consistency, coupled with the varying recollections of the precise time offered by other interested parties, lead me to the conclusion that such discrepancies are not indicative of criminal activity and thus not material to any potential investigation," McCabe wrote in a letter to Bush with his report.

The report was dated June 30 but was not released until Thursday.

The right-to-die case engulfed the courts, Congress and White House and divided the country.

Terri Schiavo died of dehydration March 31 after her feeding tube was disconnected despite efforts by Bush, her parents, and some state and national politicians to keep her alive.

Michael Schiavo had fought to have the tube disconnected, saying his wife would not have wanted to remain in such a state.

The autopsy left unanswered the question of why Terri Schiavo's heart stopped temporarily, cutting off oxygen to her brain. A medical examiner was unable to determine with reasonable certainty a "manner of death."

McCabe said there must be some fact or evidence indicating that a criminal act caused the death to open a homicide investigation. He said the review revealed none.

Attorneys for Terri Schiavo's parents did not immediately respond to a request for comment.

Michael Schiavo's attorney said he would comment after he reviewed the report.