
AI-generated summary
The mother reported years of trying to help her children against their crack addiction. Luiz Alex had left a rehabilitation clinic in Itaboraí on Monday (28) before the incident.
I lost this battle', says mother about fighting crack after son kills the other in Maricá, RJ
Danielli Quintanilha heard calls for help and saw her 23-year-old son die after being attacked by her other, 19. She reported years of struggle against drug addiction and denounced the lack of support for families of addicts.
By Bianca Chadoudet, Ariane Marques, Karen Reis, g1 — Maricá
Luiz Alex, aged 23, was killed this Tuesday (29) by his brother, aged 19, in Maricá. The crime occurred after a fight between the two.
The mother reported that she tried to help her children against addiction. Luiz Alex had left a rehabilitation clinic on Monday (28).
The suspect fled after the fight. The Niterói and São Gonçalo Homicide Police are investigating the case and searching for the object used.
Hearing calls for help, a mother saw her 23-year-old son die after the young man was murdered by his own 19-year-old brother, in Maricá, in the Metropolitan Region of Rio, this Tuesday (29). According to the police, Santhiago Monteiro hit Luiz Alex da Silva with a piercing object and then fled.
The case is investigated by the Niterói and São Gonçalo Homicide Police Station, which is also searching for the object used in the crime.
Danielli Quintanilha, 41 years old, opened up about the struggle her children face against drug addiction. She said that Luiz Alex, killed at the gate of his house, in the Mumbuca neighborhood, tried to overcome his addiction. The mother also reported the difficulty of getting help to save her children.
"I fought with all my strength, with all my strength, but unfortunately I lost that battle. My son fought a lot against addiction. He really wanted to overcome his addiction. Unfortunately, he couldn't," said his mother.
Danielli believes that the crime occurred after a jealous argument. Police are still investigating the motivation for the attack.
Even in the face of such a difficult time, Danielli shared her story to raise awareness about the reality of those who experience the problem of addiction at home.
"Let me be an example, a sad example, so that other people don't go through the things I'm going through. And that people understand that addiction, crack, is a disease, because my son fought. He suffered to try to get out of this situation", reinforced the mother.
Danielli highlighted that, in addition to the fight against addiction and the lack of support, there is still prejudice in society.
"I wanted to raise awareness of the difficulty, the lack of support that we, mothers of addicts, have. All doors close, even due to prejudice. They see the person in the worst possible light, they are unable to see it as an illness", he added.
📱 Follow the g1 Região dos Lagos channel on WhatsApp.
Son was hospitalized
According to the young people's mother, Luiz Alex was admitted to a rehabilitation clinic in Itaboraí, but left the institution this Monday (28).
To g1, Danielli said that she spoke to her children this Tuesday morning. Shortly after leaving the house, he heard a commotion and calls for help. When he returned, he found Luiz Alex bloodied at the gate of the residence, where he died.
Santhiago, suspected of the crime, had not been located until the last update of this report.
Danielli Quintanilha opens up about the fight against crack at home after her son killed the other in Maricá — Photo: Bianca Chaboudet/g1
AI outlook — possibilities, not facts
The Niterói and São Gonçalo Homicide Police Station will continue the search for Santhiago Monteiro and the object used in the crime.
Very likely · Within days
Danielli Quintanilha will continue to share her story to warn other families about the risks of crack and the lack of support.
Likely · Within weeks

Since the ban on online betting in Brazil on April 25, almost 700 new illegal betting sites have been identified, according to the Independent Observatory. The government blocked more than 5,200 websites and notified stores to remove 186 applications, but sector entities point out that less than half of the blocks were carried out by Anatel.

Natália Soares, aged 26, died after the car she was driving collided with a tree on GO-426, between Inhumas and Santa Rosa de Goiás. A child aged approximately 2 years old who was in the vehicle was taken for medical care. The Fire Department confirmed that Natália was already dead at the scene and that the cause of the accident will be determined by forensic examination.

A 42-year-old man died and another 41-year-old man was seriously injured after the roof of a tennis court fell due to winds of up to 101.5 km/h in Umuarama, Paraná, this Tuesday (29). The victims were playing tennis there when the roof gave way. The Fire Department closed the establishment due to the risk of collapse.

The Federal Police red-handedly arrested a candidate for the 2026 elections and five other people in Belém during an operation investigating electoral corruption and money laundering, seizing R$300,000 in cash withdrawn from a bank branch in the capital of Pará.

App driver Reginaldo Cortês was sentenced to 14 years in prison under an initial closed regime for double attempted murder after running over a couple on a motorcycle in Ribeirão Preto, in November 2022, during a traffic fight started by a closed one. The victims survived and the defendant, who was free, was arrested immediately after the trial.

A 72-year-old woman was attacked by two loose Rottweiler dogs in Amparo (SP), losing her ears and suffering injuries to her head, neck and arms, with the risk of amputation. The animals belong to a reserve military police officer and a woman, and had previously escaped. The victim is hospitalized in serious condition and the dogs are under observation for ten days.