Stephanie said Meredith had told her that only now that she had a roommate, Amanda, who had a habit of singing loudly all the time, did she realize how annoying it could be. And she apologized for having done so when they were younger.
Meredith had also told her parents that she was surprised to see Amanda take up a boyfriend the first week she was in Perugia.
John Kercher said that Meredith mentioned Amanda to him only twice.
"She spoke to me about her, about the fact that she was surprised how soon Amanda had gotten a boyfriend" when she arrived in Perugia, and "she told me a couple of weeks before she died that she was upset that Amanda never seemed to flush the toilet."
Stephanie Kercher described her sister as strong and passionate, a fighter. Would she have defended herself, she was asked?
"Absolutely, 110 percent," Stephanie said with no hesitation. "Mez had a strong personality, and physically she was very strong. She was very passionate about things that were important to her -- family, friends, coming to Italy," continued Stephanie. "She fought for her place here, and she would have fought to the end."
John Kercher also confirmed she was a fighter. "She was a very strong person, and when she was about 17, she studied karate for a year. I think she would have put up quite a fight," he said.
The Kerchers' lawyer said that John Kercher had been surprised that Meredith had not resisted her killer, given her strength.
"This confirms that the attack [on Kercher] was strong, and repeated, and carried out by more than one person," said Francesco Maresca, the Kercher family lawyer.
One of the sadder moments came with John Kercher's description of how he found out about his daughter's death -- every parent's hidden nightmare and a moment etched in his mind forever.
It started with a phone call from Meredith's mother.
"It was about 5 p.m. on the second of November, and Meredith's mother, Arline, called me to say he had seen on the news that a British student in Perugia had been found murdered.
"So I tried ringing Meredith on her mobile at about 5 o'clock, and I must have tried about 12 times, but it was on the automated message," he said. "At 5:30 the phone started ringing, but there was still no answer."
At 6 p.m., John Kercher, who works for a number of English newspapers, decided to call the foreign desk of one paper to see if they had any news, but they didn't.
"But about two hours later they called me and said they had the name of the student, and the name was Meredith," John Kercher said. "And that is how I found out."
Meredith's body was discovered at about 1:30 p.m. on Nov. 2, 2007.
Amanda Knox, in court again today as she has always been, was particularly somber. There were few smiles all around, as she glanced briefly back at where the Kerchers were sitting behind her. She left the courtroom at the end of the hearing with her eyes to the ground and her features solemn.
Knox's lawyer, Luciano Ghirga, told journalists after the hearing that Amanda was "very moved" because she saw the parents of Meredith, who was her friend.
"She thought of her own parents as she looked at Meredith's, and was moved," said Ghirga.
Raffaele Sollecito, in an unusual move, turned to journalists as he was leaving the courtroom. "I await justice, just like they do," he said as prison guards pulled him away.