The Sydney Morning Herald
· collected 2026-09-17 · by Jack Gramenz, Daniel Lo Surdo, Michael McGowan, Perry Duffin, Sarah McPhee
Two teenagers, aged 14 and 16, have been charged with murder and related offenses after mistakenly killing Marco Tapia, an innocent university student, during what police believe was an organized crime hit in Sydney. The incident occurred on September 1 when assailants targeted the wrong address, resulting in Tapia's death at his family home in Glen Alpine. Police arrested the suspects following a raid on two homes in Fairfield and found that the younger suspect had attempted to burn evidence, injuring himself in the process. Authorities are concerned about the involvement of young people in organized crime due to its lure of financial incentives, despite long-term consequences.
Written by the local model on 2026-09-17,
using this article's own text rather than the other coverage of the
same event (that is the story summary below).
Story summary
Marco Tapia, a 23-year-old biomedical engineering student at University of Technology Sydney, was killed in his bed on September 1 when three masked men stormed his family home in Glen Alpine, south-west Sydney. Police confirmed it was a case of mistaken identity and part of an organized crime conflict. The victim had no criminal record beyond a minor traffic offense.
Tapia's parents, Sergio and Claudia, described the attack as a "nightmare" that happened too quickly. His sister Cassie will be married in November but won't have her brother by her side due to his untimely death.
Two teenagers, aged 14 and 16, were charged with murder after police executed search warrants at two properties in Fairfield on September 20. The boys face additional charges including participating in a criminal group, possession of an unauthorized firearm, and stealing vehicles without consent. The younger teen was also charged with property damage by fire or explosion.
Homicide Squad Commander Detective Superintendent Joe Doueihi said the shooting had all the hallmarks of an organized crime murder but emphasized that Tapia was innocent in Sydney's gangland conflict.
Written for “Mistaken Identity Murder Sydney Student” on 2026-09-17,
grounded in this article and the 6 other(s) covering the same event.
Two teenagers have been charged over the botched organised crime killing of an innocent university student at his family’s Sydney home, including a 14-year-old allegedly hospitalised with burn injuries resulting from attempts to destroy a getaway car.
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teenagers → charge → car
Marco Tapia, 23, was shot dead in his bed after a group of assailants stormed the Glen Alpine house in the early hours of September 1.
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group → shoot → September
Police have since confirmed the wrong address had been targeted.
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address → confirm → ?
Homicide detectives raided two homes in Fairfield about 10am on Wednesday and arrested two boys, aged 14 and 16, alleging the teens staged vehicles and provided the weapon.
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teens → raid → weapon
The pair have each been charged with murder, participating in a criminal group to contribute to criminal activity, possessing an unauthorised prohibited firearm and two counts of driving a vehicle without the consent of the owner.
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pair → charge → owner
The 14-year-old boy was also charged with damaging a property by fire or explosion.
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boy → charge → fire
Homicide Squad Commander Detective Superintendent Joe Doueihi said the incident bore all the hallmarks of an organised crime killing, except the victim had nothing to do with Sydney’s underworld conflict.
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victim → say → conflict
“The Tapia family, and Marco are innocent people, innocent parties, and were not the intended target of this offence,” he said.
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he → intend → offence
Doueihi said the two teens were vulnerable, young and naive, but knew where their alleged actions were leading, and were significantly involved in Tapia’s death.
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actions → say → death
He said, “it wasn’t very difficult” for police to track down the pair.
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police → say → pair
“They were, if I can use the word, very clumsy,” Doueihi said.
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Doueihi → use → word
“They left a trail of evidence behind … the 14-year-old offender, as he attempted to burn the kill car, burnt himself in the process and ended up in hospital.”
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he → leave → hospital
The boys did not apply for bail at Parramatta Children’s Court on Thursday and were remanded in custody to return to court on November 13.
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boys → apply → November
Doueihi said the teenagers’ parents “were devastated and had no idea what was going on”.
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what → say → idea
“Unfortunately, young men are being targeted,” he said.
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he → target → ?
“They’re easily lured by the thrill and the financial incentive, but you know that’s a short-term gain for significantly long-term consequences.”
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that → lure → consequences
The Minns government last week announced new legislation to target organised crime networks and deter children from being lured by offshore kingpins contracting them for crimes.
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government → announce → crimes
The laws expand the list of serious children’s indictable offences that can result in adult sentences, to include those linked to organised crime such as firebombings.
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that → expand → firebombings
“The age of the people who’ve been accused of these offences is worrying for everybody in our community,” NSW Premier Chris Minns said in response to the two teens being charged.
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Minns → accuse → teens
Minns said his thoughts were with the Tapia family: “I can only imagine, to have a son who’s done absolutely nothing wrong, living his life, and be killed in his bedroom.”
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who → say → bedroom
Tapia was in his third year of a biomedical engineering degree at the University of Technology Sydney, where he had won awards and volunteered for Engineers Without Borders.
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he → win → Borders
His only known brush with the law was a minor traffic offence.
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brush → know → law
Marco’s parents, Sergio and Claudia Tapia, recounted the “nightmare” attack that claimed their son’s life, telling A Current Affair on Monday the violent onslaught happened “so fast”.
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onslaught → recount → Monday
“I remember him taking his final breath,” Claudia said.
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Claudia → remember → breath
“There was hate that came to our house.”
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that → be → house
Police are still looking for the people who invaded the Glen Alpine home and pulled the trigger.
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who → look → trigger
“It’s looking quite good, I can’t say anything further than that, but it is being progressed,” Doueihi said.
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Doueihi → look → that
Joshua Macdonald, 40, was shot dead at a home in Merrylands West the day after Tapia was killed, in another case police believe was mistaken identity amid Sydney’s escalating gangland war.
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police → shoot → war
Jimmy Schulz, 18, has been remanded in custody after being charged with murder on Friday for allegedly conducting drone surveillance a couple of streets away from the home where Macdonald was shot.
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Macdonald → remand → home
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news → know → ?
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