WOBURN, Mass. (AP) — A Lowell man whose first-degree murder conviction for stabbing his former landlady to death was overturned by the state's highest court has pleaded guilty to second-degree murder.

Nino DiPadova was convicted in 2007 of stabbing 56-year-old Nancy Carignan in 2004 more than 100 times.

The Supreme Judicial Court in August 2011 overturned DiPadova's conviction and ordered a new trial because the jury was given erroneous instructions.

The Sun (http://bit.ly/YeFeIs ) reports that DiPadova avoided a retrial Wednesday by pleading guilty in Middlesex Superior Court to second-degree murder, which gives him the chance of parole in 15 years.

Prosecutors say DiPadova flew into a rage and killed Carignan because she refused to lend him money to pay a drug debt.

His defense lawyers say he has a long history of mental illness.


Information from: The (Lowell, Mass.) Sun, http://www.lowellsun.com