Prosecution Has Wrapped Up In Corasanti Trial

May 17, 2012 Updated May 17, 2012 at 12:58 PM EDT

By WKBW News

May 17, 2012 Updated May 17, 2012 at 12:58 PM EDT

BUFFALO, N.Y. ( WKBW ) The prosecution has now wrapped up it's case against Dr. James Corasanti in his manslaughter trial.

Before they were through, the jury heard more scientific testimony about DNA evidence.

Jodi Luedemann from the Erie County Forensic Laboratory testified that samples taken from the right front of Dr. Corsanti's cars, and from a small piece of human flesh found inside his garage, all matched the DNA of Alexandria Rice.

The prosecution is also trying to prove that the doctor tampered with evidence.

Previously, we heard that investigators found wipe marks on his car, and a maggot covered rag in his garbage.

Ludemann said there were three red stains on the rag, one of them testing positive for blood.

However she was unable to make a DNA match to the victim.

Defense attorneys have previously said that Dr. Corsanti removed the body tissue from the car, because he was not sure what it was.

Thursday morning, under cross examination by defense attorney Tom Burton, Jodi Ludemann agreed that no remnants of any cleaning chemicals were found in any of the DNA samples.