Sheriff awaits additional tests to help pinpoint cause of death of 3-time national champion QB

REPLACES SECOND AND THIRD SENTENCE TO UPDATE THAT FINNERTY HAS BEEN FOUND DEAD - FILE - In this May 29, 2008 file photo, Denver Broncos backup quarterback Cullen Finnerty stretches at the team's headquarters in Denver. Authorities say Finnerty who went missing over the weekend has been found dead Tuesday, May 28, 2013 in Michigan. He led Grand Valley State University to three Division II national titles and more than 50 wins during his four years as a starter in Allendale, Mich., last decade. (AP Photo/David Zalubowski, File) (The Associated Press)

FILE - In this Dec. 10, 2005, file photo, Grand Valley State quarterback Cullen Finnerty runs against Northwest Missouri State's Chris Termini during the first half of the NCAA Division II championship football game in Florence, Ala. Authorities say the former college football quarterback who went missing over the weekend has been found dead in Michigan. Lake County Undersheriff Dennis Robinson says Finnerty's body was found Tuesday night, May 28, 2013. (AP Photo/Rainier Ehrhardt, File) (The Associated Press)

A Michigan sheriff says there's no firm timetable on the release of additional test results that might help determine the cause of death of a former national championship-winning quarterback.

Autopsy results released Wednesday didn't pinpoint what caused Cullen Finnerty's death.

Lake County Sheriff Robert Hilts says there was no obvious sign of heart trauma. Foul play isn't suspected.

The sheriff said Thursday morning it's unclear when brain and toxicology test results might come back, but he's "hoping maybe sometime" later in the day.

The 30-year-old Finnerty won more than 50 games and three national championships at Grand Valley State University in Allendale, Mich., the last in 2006. His body was discovered Tuesday in some woods in western Michigan after he disappeared during a family trip to a cottage.