Dylan Millman revealed the bandage on his stab wound in May. (CBC)

A P.E.I. man switched his plea to guilty Monday in connection with a knifing at a beach party in May.

Jason Clay Waite pleaded guilty to aggravated assault, assault and mischief. He changed his plea in light of DNA evidence that showed both his DNA and the victim's on a knife. Waite's DNA was already on record with police, allowing them to make the match.

The mischief charge was laid when Waite rammed an unmarked police car on the day of his arrest.

Dylan Millman was stabbed twice on the night of May 23. Millman was in court Monday to make a victim impact statement.

Millman told the court he did not understand why Waite did not have the "guts" to apologize to his face.

Waite then turned around in his chair, wearing handcuffs and leg irons, and said, "I'm sorry man. You looked bigger the night of the fight. I'm sorry."

Court heard that Waite had consumed two quarts of rum on the night of the attack. Millman said Monday that the amount of alcohol Waite had that night was not an excuse for what had happened to him.

The knife was recovered the day after the party and DNA test results were revealed in late October.

"This is not TV, CSI effect, where you have results within an hour," said Crown attorney John Diamond. "We're talking six months to nine months in most cases for results to be processed and sent back."

Waite was sentenced to 30 months for the aggravated assault, six months for the assault to be served concurrently, and a further two months on the mischief charge to be served consecutively.

He has been in custody since his May 25 arrest, and receives 11½ months credit on his sentence for that time served.