Rebecca Nalepa and Jonah Shacknai
Courtesy Shacknai Family
07/27/2011 AT 07:50 PM EDT
Police received nine calls in the last three years related to two of a millionaire's homes, but investigators are finding no links to two deaths
tied to one of the residences.
"There doesn't appear to be a connection," Coronado Police Commander Michael Lawton tells PEOPLE. "There's nothing here that stands out as suspicious."
The calls involved the beachfront mansion owned by Jonah Shacknai, 54, and another residence four blocks away that he also owns and where his ex-wife, Dina, 40, lives.
Shacknai's son, Max, 6, eventually died after a fall in the mansion, and the businessman's girlfriend, Rebecca Zahau, 32, was next found hanged there.
The calls to police related to the mansion include a report of a vandalism to a vehicle, second-degree burglary, and a robbery alarm between 2008-2011.
Five calls to cops between 2009-2011 to the ex-wife's home included a suspicious vehicle call, two complaints of disturbing the peace, and a burglary alarm – but police found no crimes had been committed.
Lawton says the beachfront area is full of tourists and prone to frequent police calls and false alarms. He adds that some of the calls may not have involved either property at all, but were simply in close proximity to an random incident.