Season 2 of Rizzoli and Isles starts sometime in 2011. There is not an exact date yet.
Rizzoli & Isles
The Sinner is a 2003 mystery novel by Tess Gerritsen, the third book of the Maura Isles/Jane Rizzoli series.
The Sinner involves Detective Jane Rizzoli and a main character new to the series, first seen in "The Apprentice" as a minor figure, medical examiner Dr. Maura Isles. When a young novice nun about to take vows is found murdered in the abbey's summer chapel, Isles and Rizzoli are immediately called to the scene. The elderly nuns are of little help to Isles and Rizzoli but when another body is found, mutilated beyond recognition (and testing reveals the body to be that of a fortyish Indian Hansen's Disease victim), it is soon discovered that there is more to these killings than meets the eye.
Rizzoli & Isles is a TNT television series starring Angie Harmon as police detective Jane Rizzoli and Sasha Alexander as medical examiner Dr. Maura Isles. The one-hour drama is based on the Rizzoli & Isles series of novels by Tess Gerritsen. It premiered on July 12, 2010. On June 29, 2012, it was renewed for a 16-episode fourth season; and on August 15, 2013, it was renewed for a 15-episode fifth season, which is slated to begin in summer 2014.