Updated:GREENSBURG, Pa.,None - A 17-year-old girl was "the prime instigator" in the torture and slaying of a mentally disabled woman last year, a prosecutor said. But a defense attorney said it's unreasonable to conclude that a high school senior could have influenced five adults to commit "the ultimate act" of murder.
VIDEO: DA: Teen Was 'Instigator' In Disabled Woman's Death
The two views were presented to jurors Monday at the opening of Angela Marinucci's trial. Marinucci, now 18, is charged with first-degree murder and other crimes in the death of Jennifer Daugherty, 30.
Daugherty was bound with Christmas decorations, beaten, forced to drink urine and detergent and then stabbed to death in February 2010, prosecutors said. Her body was found two days later, stuffed into a plastic garbage container and shoved beneath a truck in a snow-covered school parking lot.
Channel 11's Courtney Brennan was in the courtroom when testimony began on Monday. More than 15 family members and friends of Daugherty filled the Westmoreland County courthouse. Brennan reported that many of them cried as the district attorney told the jury detailed information about how Daugherty died.
One witness testified that she was driving to work and saw two men dragging a garbage can in the middle of a snowstorm. She told the judge that she knew something wasn't right and said when she watched the news that evening her fears were confirmed.
"I saw two people dragging a garbage can across the road. It seemed a little odd so it was definitely something to question. Later on when we heard over the news what was going on I immediately called my father and we knew something was wrong," said Rebecca Clark.
Westmoreland County District Attorney John Peck told the jury that Marinucci was present for much of the time Daugherty was tortured and killed in a dingy apartment in Greensburg. Marinucci sometimes stayed there with her boyfriend, Ricky Smyrnes, 25, and four other adults – all of whom are charged in the slaying and awaiting trial.
Peck contends Marinucci was jealous of Daugherty and participated in two "family meetings" called by Smyrnes, both of which he said included unanimous votes by all six defendants to kill Daugherty.
"She did not want anybody else vying for Ricky Smyrnes' attention," Peck said of Marinucci, calling her "the prime instigator of the conspiracy."
Daugherty had taken a bus from her hometown, Mount Pleasant, to visit her friend at the apartment and had a medical appointment scheduled in Greensburg.
Instead, by the night of Feb. 9, 2010, the others began harassing Daugherty, a woman described by her family as having the mental capacity of a young teen.
"Although she was a young woman, in many ways she was still a child," Peck said. "She didn't understand the concept of who do you trust and who you couldn't trust."
While Daugherty took a shower, the apartment residents stole $8 from her purse -- which Peck said was her bus fare for the 12-mile trip back to Mount Pleasant -- and a gift card. The suspects spilled makeup and mouthwash in the purse and when Daugherty found out and asked why they did it, "the harassment became more significant," Peck said.
She was punched in the face, kicked and hit with a bar from a towel rack, Peck said. At some point her hands were tied with Christmas lights and her feet tied with tinsel garland, Peck said.
Apparently realizing the situation had escalated, the suspects voted for the first time to kill Daugherty and proceeded to force feed her human waste and laundry bleach, Peck said. When Daugherty got sick and vomited, they took another death vote, he said.
Peck said Daugherty was then forced to write a "suicide" note. Smyrnes then gave a knife to Melvin Knight, 21, and told him to kill Daugherty saying, "I can't do it. You have to do it," Peck said.
Peck intends to pursue the death penalty against Smyrnes, Knight, and Knight's girlfriend, Amber Meidinger, 21. He doesn't intend to seek the death penalty against the two other defendants -- Peggy Miller, 28, and Robert Masters, 36.
Peck can't pursue the death penalty against Marinucci, because she was a juvenile at the time of the crime. Her age was the cornerstone of her attorney's opening statement.
Attorney Michael DeMatt told the jury Smyrnes was the driving force for the killing. "You're gonna hear evidence that doesn't fit ... the Commonwealth's theory" that Marinucci was jealous of Daugherty and wanted her dead, he said.
Instead, DeMatt painted Smyrnes -- a small-time criminal with a history of violence -- as a "flirt" who approached all the women at the apartment at one time or another and who wanted Daugherty dead so he could focus on Marinucci.
He said Masters told police he didn't know how to stop the torture killing.
"How can you ask a 17-year-old high school student to step up and stop this violence from occurring?" DeMatt asked. He said the prosecution wants the jury to believe "this 17-year-old managed to convince five others, adults, to perform the ultimate act -- taking another person's life."
Previous Stories: March 17, 2011: Lawyers Work For Plea Bargain For Youngest Greensburg Torture, Slaying Suspect November 2, 2010: Defendant Describes Days Leading Up To Greensburg Woman's Slaying November 1, 2010: Greensburg Slaying Suspects Could Be Tried Separately October 15, 2010: Greensburg Torture Slaying Suspect Wants Death Penalty Nixed September 15, 2010: Prosecution Wants More Time To Investigate Greensburg Slaying Suspect
DA: Teen Was 'Instigator' In Disabled Woman's Death
Strong storm that prompted tornado warning brings down trees, power lines
Bystander grazed by bullet during gunfire thankful his injury wasn't worse
‘Vampire' man who sexually abused teen gets probation
Jury deadlocked in trial of mom accused of killing toddler;…