Homicide officers are currently on a quadruple murder scene in Las Cuevas where reputed drug and gun smuggler, Vaughn 'Sandman' Mieres, his wife and two others were killed.
Police said high-powered assault rifles were used.
It is believed that the gunmen escaped by boat after the deadly shootings.
On June 12, gunmen opened fire on a vehicle transporting two of his children along Belmont Circluar Road, near Providence Girls' Catholic School, a short distance away from the Belmont Police Station.
Three students were treated for injuries and mental trauma, after the drive-by shooting.
The driver of the van transporting the children, James Gordon, of Maracas was also shot but managed to escape by running away.
Two of the injured, aged 6 and 15, were identified as Mieres' children.
They were taken to the Port-of-Spain General Hospital for emergency treatment.
Another 18-year-old student was shot in her leg.
In September 2017, Mieres, was charged with conspiracy to murder Selwyn ‘Robocop’ Alexis, in October 2014.
Alexis, the leader of an Enterprise, Chaguanas gang, was murdered in July 2016.
Mieres, 44, of School Street, Las Cuevas Village, appeared before Senior Magistrate Nanette Forde-John, in the Port of Spain 8th Magistrates’ Court, and was later released on $450,000 bail.
Mieres was arrested after police executed a search warrant at his home for dangerous drugs between the hours of 11 pm on August 30, 2017 and 8.15 pm on August 31, 2017.
During the search police allegedly seized US$5,330, TT$1,100 in cash and several pieces of camouflage clothing.
Mieres had been arrested during the 2011 State of Emergency and was later charged with being a gang leader.
He was later released on bail.