- You may be looking for Kevin Hiatt.
Kevin was the brother of Robert.
Before Season 3Edit
Robert had been unemployed for some time, and had gone through rehabilitation. Several times, he had asked his brother for money when some job opportunities arose, but they never worked out. Ultimately, he owed Robert about $15,000. Kevin was also the beneficiary of Robert's insurance policy.
Kevin visited his brother Robert in the morning and prepared breakfast for him. During the afternoon, Robert was taken to Mission Cross Hospital with his third case of food poisoning in the same month. Doctors found traces of a poison called thallium in Robert's stomach indicating a murder attempt.
When Robert told Dutch Wagenbach that Kevin had prepared breakfast all the times he had been treated for poisoning, Kevin was brought up to the Barn for interrogation. During the interrogation, Dutch harassed Kevin which prompted him to close up and not confess.
Dutch then asked Claudette Wyms for help. She approached Kevin and after tricking him, he confessed to poisoning Robert because he was ashamed for all the times he had disappointed him and because he knew he could never pay him back all the money he had given him.