That's not evidence. Hearsay most likely. Definitely suspicious.
I could walk into a bar tell everyone I killed someone and boast about it. I may become a suspect or person of interest to the police, but they're gonna have an awfully hard time pinning me with murder based on purely bar talk. Now if the police have bodies or weapons etc. then this is a different story.
OTOH who knows how rigorous the Brazilian court system is...
No idea what Brazilian law is regarding hearsay or even if they have a rule disallowing it, but at least in the US, this instance of hearsay would be allowed as evidence in court under the "statement against interest" exception to the hearsay rule.
I could walk into a bar tell everyone I killed someone and boast about it. I may become a suspect or person of interest to the police, but they're gonna have an awfully hard time pinning me with murder based on purely bar talk. Now if the police have bodies or weapons etc. then this is a different story.
OTOH who knows how rigorous the Brazilian court system is...