Benjamin Martinez is charged with fatally stabbing Caridad Puente on June 9, 2004, at her Taylor Street Springfield apartment.
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SPRINGFIELD - Assistant District Attorney Karen J. Bell on Wednesday told Hampden Superior Court jurors to believe the DNA and dismiss testimony by the murder defendant as lies.
Bell delivered her closing argument to jurors in the trial of Benjamin Martinez, accused in the 2004 killing of Caridad Puente, who was stabbed 32 times.
Defense lawyer Mary Anne Stamm, in her closing argument, said Martinez's testimony explained why his DNA was in various places in Puente's Taylor Street apartment in Springfield.
Jurors began deliberating around noon in the trial before Judge Richard J. Carey.
Martinez, 48, testified he saw a drug dealer named Alexi Guzman attack Puente, 35, with a knife, causing her to bleed from the face.
Martinez said when he left the apartment before noon on June 9, 2004, Guzman was going to take Puente to the hospital. Martinez said he did not call police to report what he had seen.
Puente was pregnant at the time of her death. Her 11-month-old child, screaming and covered in his mother's blood, was next to her in the closet in which her body was found.
Martinez, 48, of Chicopee, was arrested in 2014 after his DNA was found to match blood in the apartment as well as DNA recovered from under Puente's fingernails.
Stamm said the evidence collected from the apartment and Puente's fingernails was in the hands of investigators since 2004, but it wasn't tested until 2014.
"Why wasn't it tested long before 2014," Stamm said.
Bell acknowledged it "absolutely" should have been tested earlier. She said the evidence was at the State Police crime lab but the crime lab was waiting for police to give the go-ahead for testing.
She said police thought once the evidence was at the lab it would automatically be tested.
Martinez testified he was at Puente's apartment testing heroin for its potency. He said he got blood in the apartment because he couldn't find a vein while shooting heroin and he bled a lot.
He said he tried to intervene when Guzman was stabbing Puente, and got cut while doing that.
"I submit you should believe the testimony of Benjamin Martinez," Stamm told jurors. She said Guzman disappeared and didn't speak with police. Guzman was a drug dealer who was being undersold by Puente, she said.
Bell said Martinez's DNA got under Puente's fingernails as she was fighting for her life and the life of her 11-month-old son.
Police tried to speak with Guzman, Bell said, but he couldn't be found. She said Guzman was an illegal immigrant who didn't want to talk to police.
Police "left no stone unturned" in investigating Guzman, Bell said. They searched the home where he lived and searched his car for blood. If Guzman had brutally stabbed Puente, including causing a spurting wound to the carotid artery, there would have been blood in his car, Bell said.
She said Martinez "would say anying to save himself."
There was as much evidence Santa Clause committed the murder as there is that Guzman committed the murder, Bell said.
The prosecution wants the jury to convict Martinez of first degree murder under the theories of premeditation and extreme atrocity and cruelty.