John Elway won't face any charges in connection tothe death of his longtime agent,Jeff Sperbeck, who died in April afterfalling off a golf cartthe former Broncos quarterbackwas driving. The Riverside County (Calif.) Sheriff's Office will be announcing that its investigation found no criminal activity and that Sperbeck's death was an accident. "It's over,'' Riverside Sheriff Chad Biancotold 9NEWSon Friday. "We've talked to everyone involved and we found nothing new. There was nothing criminal, it was what we've been saying all along that this was a tragic accident." Sperbeck, 62, died on April 30, four days after he fell off of the back of a golf cart at The Madison Club in La Quinta, Calif. Sperbeck was transported to Desert Regional Medical Center in Palm Springs and placed on life support. The Riverside Sheriff's Coronerruled in Maythat Sperbeck's death was the result of "blunt head trauma," and that the manner of death was "accident." "There are no words to truly express the profound sadness I feel with the sudden loss of someone who has meant so much to me," Elway, 65, said in a statement after Sperbeck's death. "My heart and deepest sympathies go out to Jeff's wife, Cori; his children Carly, Sam and Jackson; and everyone who knew and loved him. Jeff will be deeply missed for the loyalty, wisdom, friendship and love he brought into my life and the lives of so many others." Sperbeck became Elway's agent in the 1990s and the two later became business partners, starting a winery called 7Cellars. Elway, a Hall of Famer and two-time Super Bowl champion as a player, later won another ring with the Broncos as their general manager.