Man stabs neighbor who died after knocking his door to complaint about noise and punching him

A man who knocked on a neighbor’s door to complain about loud music at 2.30am was fatally stabbed in a frenzied attack caught on surveillance video.   

According to police reports, Helenildo Alves dos Santos, 37, reportedly knocked on João Roberto Penna Pereira’s apartment on Sunday.

Penna Pereira, 35, told the Valparaíso de Goiás Civil Police that Alves dos Santos knocked on his door then attacked him by punching twice in front of his wife and six-year-old son before he retaliated with a knife.

WARNING GRAPHIC CONTENT 

Helenildo Alves dos Santos died early Sunday morning following a violent altercation with a neighbor at their condominium in Goiás, Brazil. The 37-year-old suffered multiple stabbed wounds after he allegedly punched his neighbor in the face after complaining about loud notice coming from his apartment

Helenildo Alves dos Santos died early Sunday morning following a violent altercation with a neighbor at their condominium in Goiás, Brazil. The 37-year-old suffered multiple stabbed wounds after he allegedly punched his neighbor in the face after complaining about loud notice coming from his apartment

Helenildo Alves dos Santos died early Sunday morning following a violent altercation with a neighbor at their condominium in Goiás, Brazil. The 37-year-old suffered multiple stabbed wounds after he allegedly punched his neighbor in the face after complaining about loud notice coming from his apartment

Surveillance camera captured the moment João Roberto Penna Pereira (top right) stabbed Helenildo Alves dos Santos (bottom right) during an argument in the apartment building

Surveillance camera captured the moment João Roberto Penna Pereira (top right) stabbed Helenildo Alves dos Santos (bottom right) during an argument in the apartment building

Surveillance camera captured the moment João Roberto Penna Pereira (top right) stabbed Helenildo Alves dos Santos (bottom right) during an argument in the apartment building

Penna Pereira, who was taken in for questioning and later released from custody, told his wife to call the cops before grabbing a knife to confront Alves dos Santos, who he said appeared to have been drinking alcohol.

Surveillance video cameras captured the moment both men confronted each other in the hallway.

Alves dos Santos is seen in the footage running away from his neighbor, who in the video is clearly jabbing a knife at the victim’s arm and back.

Helenildo Alves dos Santos (top left) keeps his distance away from João Roberto Penna Pereira (center) after he was stabbed several times during an argument in which he, according to police reports, punched Penna Pereira, twice in the face. Alves dos Santos was transported to a local hospital where he died due to his stab wounds

Helenildo Alves dos Santos (top left) keeps his distance away from João Roberto Penna Pereira (center) after he was stabbed several times during an argument in which he, according to police reports, punched Penna Pereira, twice in the face. Alves dos Santos was transported to a local hospital where he died due to his stab wounds

Helenildo Alves dos Santos (top left) keeps his distance away from João Roberto Penna Pereira (center) after he was stabbed several times during an argument in which he, according to police reports, punched Penna Pereira, twice in the face. Alves dos Santos was transported to a local hospital where he died due to his stab wounds

João Roberto Penna Pereira (center) paced around the hallway after he was seen on camera stabbing Helenildo Alves dos Santos (top left)

João Roberto Penna Pereira (center) paced around the hallway after he was seen on camera stabbing Helenildo Alves dos Santos (top left)

João Roberto Penna Pereira (center) paced around the hallway after he was seen on camera stabbing Helenildo Alves dos Santos (top left)

As blood streamed down from his wounds, Alves dos Santos stood at one end of the hallway shouting at Penna Pereira.

He then reached for the elevator’s buzzer but took several steps back as Penna Pereira approached him once again before they argued for nearly two minutes.

Residents ultimately came to Alves dos Santos’ aid and called paramedics.

He was transported to Marajó Emergency Unit where doctors attempted to save his life before declaring him dead.

Helenildo Alves dos Santos (top center) frantically reached for the elevator buzzer after he was attacked by João Roberto Penna Pereira (bottom center) during a dispute at their condominium early Sunday morning in the east-central Brazilian state of Goiás

Helenildo Alves dos Santos (top center) frantically reached for the elevator buzzer after he was attacked by João Roberto Penna Pereira (bottom center) during a dispute at their condominium early Sunday morning in the east-central Brazilian state of Goiás

Helenildo Alves dos Santos (top center) frantically reached for the elevator buzzer after he was attacked by João Roberto Penna Pereira (bottom center) during a dispute at their condominium early Sunday morning in the east-central Brazilian state of Goiás

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