Officers say they seized more than $1 million worth of cannabis from the home, where the family business involved designing superior-quality marijuana through a "meticulous" grow operation.
Bond was set at $50,000 each for the two men accused of running the grow operation, Cook County Sheriff Thomas J. Dart announced Thursday.
John Gecan, 52, and his son Christopher Gecan, 27, were charged with production of cannabis, possession of cannabis with intent to deliver and possession of cannabis with intent to deliver.
Darlene Gecan, 52, was also charged with production of cannabis. She received a bond of $25,000.
James Osmolski, 22, was charged with possession of cannabis with intent to deliver and production of cannabis. Osmolski received a $50,000 bond. Osmolski is a relative of the Gecans.
All four reside on the 5300-block of West 175th Street in unincorporated Tinley Park.
Police removed approximately 97 cannabis plants, 2,960 grams of cannabis, $7,511.00 in cash and a small amount of cocaine, according to a press release. The estimated street value of the drugs is $1,043,000.
Authorities say they were tracking a package containing cannabis seeds addressed to the Gecan residence. On Tuesday, when Christopher and John Gecan took delivery of the package, all four were taken into custody.
"Obviously, the people who built this knew what they were doing from a construction standpoint, as well as from a horticultural standpoint," said Kevin Ruel, deputy Cook County sheriff.
After bonding out of court Thursday morning, John Gecan returned to his home along with his wife. He said he was going back to court to get his sons. Meanwhile, he denied the allegations against him and he said the marijuana that is produced at his home is for medicinal purposes.
"They had no business coming into my house," he told ABC7. "It was for personal use."
Gecan's son and relative remain in custody, locked up in the Cook County jail.