University student shot in wrong house

Marco Tapia, 23, was killed inside his family home in Glen Alpine on September 1 when police say attackers targeted the wrong address during a home invasion.

Two teenagers charged with murder

Boys aged 14 and 16 were arrested and charged with murder, though police say neither pulled the trigger. They're accused of staging vehicles, supplying the weapon, and helping the gunman escape.

Joint criminal enterprise liability

Detective superintendent Joe Doueihi said the boys are liable for murder because they knowingly participated in a criminal enterprise, even though they weren't present during the actual shooting.

“Even those these boys were not present and not part of the actual murder, we will allege that by the nature of their activities they form part of the joint criminal enterprise, therefore they are liable for the offence of murder.”

Boys prepared cars and supplied weapon

Police allege the teenagers prepared and dropped off vehicles, picked up the offenders, supplied a firearm, and burned the getaway car. One boy allegedly burned himself in the process and ended up in hospital.

Clumsy behaviour left trail of evidence

Doueihi said the offenders left a trail of evidence through careless actions. One teenager's hospitalisation after burning himself while torching the vehicle helped police build their case.

Tapia's family devastated by loss

Tapia's parents told media their son was a caring, loving man. His mother said she remembers him taking his last breath; his father called the killing wasteful and ridiculously stupid.

“Hate came to our house.”

Police vow to stop Sydney shooting spree

NSW Police Commissioner Mal Lanyon vowed to target those behind multiple Sydney shootings. Another man was killed on September 2, prompting the commissioner to say one innocent victim is unacceptable.

“One innocent victim is unacceptable to me. We won't rest until we stop this violence.”