Westport Police arrested a third person they say is involved in the violent carjacking that happened inside a Westport man's garage.

Police believe 22-year-old Garrett Gibbs is not one of the attackers visible in the video of the carjacking but was their driver.

The search is still on for one of the attackers who is still at large - and police expect more arrests.

"We believe that he is the getaway driver in the stolen BMW that drove them to the house, and then away from the house," says Lt. Eric Woods, Westport Police Department.

Westport Police arrested Gibbs, of Waterbury, Friday afternoon. He is the third person charged in connection to last month's carjacking inside a Bayberry Lane home.

Police said Gibbs was known to 16-year-old Giovanni Lopez, also of Waterbury. Lopez is believed to be one of the attackers.

Officials say technology made their connection easy to find.

"In this day and age of cellphones and license plate reader data, that really is a huge part of this investigation. Everywhere you go, you're leaving a footprint of where you're at with your cellphone," says Woods.

The other man previously arrested is 39-year-old Derrick McGill. Police recovered the stolen Aston Martin and three other stolen luxury cars from his Berlin home. Police are investigating his possible role in the carjacking.

Police held a public safety forum two days after the carjacking. Lt. Woods says the message was received.

"We've had no stolen cars since that event, but we've also had people calling us with suspicious activity, or callers that have turned into really nothing - which is what we want. That's the message - we want residents of Westport to call us if they feel like there's something suspicious," he says.

Gibbs faces seven charges and is being held at the Westport Police Department on a $500,000 bond. He is scheduled to appear in court on Oct. 16.