Four people were arrested and are facing over a dozen charges for their alleged exploitation of a 72-year-old man who had dementia in Hollywood, authorities said.

According to the Broward Sheriff’s Office, the four suspects were engaged in a scheme to defraud the victim, later identified as Thomas Hegarty, of his Hollywood home, which is valued at over $300,000.

“He lost everything. I mean heirlooms, possessions,” said Peggy Hegarty, Thomas’ sister-in-law. “He was in shock and depressed after this all happened. He was not eating.”

The suspects and their charges include the following:

Brandon Lee Miguel, 25 and Jordy Luis Perez, 25, are facing six charges, which include organized scheme to defraud $50,000 or more, grand theft exceeding $100,000, unlawful filing of false documents affecting real property, mortgage fraud, exploitation of an elderly person and money laundering

Monica Elizabeth Castelli, 56, is facing two criminal counts, including kidnapping with intent to facilitate the commission of a felony, and exploitation of an elderly person

Derek Enrique, 43, was charged with one count of false or fraudulent acknowledgments

Deputies said that an investigation started when a family member, who was concerned about the Hegarty’s mental condition and was suspicious about the transfer of his residence, called Hollywood Police.

Hollywood Police and the Broward County Property Appraiser’s Crimes Against Property Unit led the investigation.

Investigators said that the suspects allegedly took advantage of the victim and were able to get his signature on a power of attorney document and a warranty deed. The documents were allegedly falsely notarized and used to purportedly transfer ownership of the home to a company controlled by Miguel and Perez.

Based on the victim’s documented dementia, investigators allege that he did not understand what he was signing.

As part of the scheme, Miguel and Perez allegedly arranged for the victim to be removed from his home by Casteli, and he was moved to a rooming house in Miami Gardens.

After the victim was gone, Miguel and Perez allegedly gained entry to his house and removed all of his personal property, which was reported missing.

Part of the reported missing property included the victim’s three vehicles.