One of the remaining teenagers accused of taking part in the fatal stabbing of New London resident Matthew Chew rejected an offer from the state to plead guilty to a lesser charge in exchange for a 15-year prison sentence.

Rahshad Perry, 19, of New London, who is charged with accessory to commit murder and conspiracy to commit murder, appeared in Superior Court Tuesday. He turned down the offer to plead guilty to first-degree manslaughter in exchange for a sentence of 20 years in prison, suspended after 15 years prison and five years probation.

His case was added to the trial list.

Six local teens were arrested a month after Chew, 25, was jumped and killed as he walked home from his restaurant job on Huntington Street on Oct. 29, 2010.

The person considered the lead aggressor, Idris Elahi, 19, pleaded guilty to murder and was sentenced last month to 35 years in prison. The state then began making plea offers to the other five defendants, all of whom remain incarcerated, based on whether they cooperated with the investigation.

According to testimony from his co-defendants, Perry had dared his friend Elahi to stab somebody as the group prepared to head downtown and jump a random victim. Perry’s attorney, William Gerace, said his client was at the scene but had fled when the attack began.

The teens are being offered the option of pleading guilty to a lesser charge in exchange for a reduced prison sentence or going to trial on the murder charges, which carry a sentence of up to 60 years in prison.

Perry and Matias Perry, 19, who are not related, did not testify at a probable cause hearing in the case. The teens who did testify — Bundy, Brian Rabell and Marquis Singleton — have received plea offers involving significantly shorter sentences.

All of the teens have upcoming appearances in New London Superior Court at which they will tell Judge Patrick J. Clifford whether they will accept or reject the offers.

k.florin@theday.com