Carlos Magno Goncalves Rodrigues, 20, was asked by the victims brother, Leonardo, 26, to check up on the teen after he failed to show up for work.
Leonardo described his sibling as “a person who didn’t have problems, he didn’t have beef with anyone, everyone liked him”.
Carlos found Jose inside the freezer at his grandmother’s house wearing just his underwear.
He often helped his 26-year-old brother, a refrigerator technician, with odd jobs.
The 15-year-olds grandmother wasn’t home at the time of the incident prompting Carlos to jump the wall and find the unconnected freezer in the back garden, with blood dripping out of it.
He told local media: “It was already smelling bad. I opened the freezer and found him there sitting in just his underpants.”
The 20-year-old called authorities, who arrived at the scene and confirmed that Jose was dead.
Leonardo said: “I thought it was strange, he’d been missing since early. I called everyone and no one knew anything.”
In the garden there were reportedly a number of chairs placed in a circle, suggesting the teen had not been alone, as well as a hose, which may have been used to clean up.
A number of plants were also knocked over, suggesting the people Jose was with had jumped the wall to escape.
The police also seized a notebook, a mobile phone, and a knife from the scene to assist with their investigation.
Jose didn’t have a criminal record and was known to be a calm and happy person by his family and friends.
The police are still currently investigating the circumstances surrounding the teen’s death.