Jury selection is finally underway in the trial of 59-year-old Paul Caneiro, the man accused of killing his brother and his brother’s family more than seven years ago at a Colts Neck mansion.

Paul Caneiro and his younger brother Keith were former business partners.

Paul Caneiro is accused of brutally killing Keith, his wife Jennifer, and their two children – 11-year-old Jesse and 8-year-old Sophia and then trying to cover it up.

According to court documents, on the morning of Nov. 20, 2018, emergency crews responded to Paul Caneiro's home on Tilton Drive in Ocean Township for a fire just after 5 a.m.

Several hours later, crews rushed to Keith Caneiro's mansion in Colts Neck, which was now on fire, and discovered a grisly scene.

Keith Caneiro had been shot numerous times and was found dead outside the burning home. Crews inside recovered the slain bodies of his wife Jennifer and their children, Jesse and Sophia. The children were both stabbed; Jennifer, was stabbed and shot.

Prosecutors say Paul Caneiro set both fires to make it appear the family was being targeted. Then-Monmouth County Prosecutor Chris Gramiccioni said money went missing from joint business ventures and believes Caneiro first went to Colts Neck, killed his brother and his family, started a fire in the basement of the mansion, then returned home early that morning and set his own house on fire with his wife and children inside. They made it out safely.

Police arrested Caneiro the next day for the alleged arson to his own home, with upgraded murder charges a week later, and insurance fraud charges filed in 2019.

Delays spanned years. Defense attorneys argued a DVR home security video system removed from Caneiro's home the morning of the fire was illegally obtained, but the New Jersey Supreme Court ruled in favor of the state this past December.

A full jury and alternates are expected to be selected by Thursday.

This is expected to be a long trial. The judge told perspective jurors it could go as late as March 20.

Meanwhile, Paul Caneiro has been in Monmouth County Jail since his arrest.

If convicted, he could spend the rest of his life in prison.