"He was a calm, chill, loving person who loved his family, definitely his mother, and a good friend," Jeantel told Piers Morgan of Martin.
She added that she thought the verdict had been "B. S."
As the last person to speak to Martin, Jeantel's testimony was key to the prosecution's case. While on the stand, she said Martin told her over the phone that some "creepy-ass cracker" was following him and that he turned toward Zimmerman and asked, "Why are you following me for?"
During her interview with CNN, Morgan dubbed the 19-year-old could as "the person who knew Martin the best." She said the two spent all day taking on the phone about their goals and what they wanted to be.
Asked about the fact that Martin was under the influence of marihuana when he was shot dead by Zimmerman, Jeantel acknowledged that her friend smoked the drug and added that, "weed don't make him go crazy, it just makes him go hungry."
A juror who spoke to CNN's "Anderson Cooper 360" on Monday said she didn't consider Jeantel to be a credible witness, "but felt very sorry for her."
"She didn't ask to be in this place ... She wanted to go. She wanted to leave. She didn't want to be any part of this jury. I think she felt inadequate toward everyone because of her education and her communications skills. I just felt sadness for her."
After her testimony, Jeantel was criticized for the outfit she wore to trial, the way she spoke and her combative manner on the stand. The 19-year-old later explained that she grew up speaking Spanish and Creole and that her speech was affected by a underbite that required corrective surgery.
Notable deaths of 2014 [PHOTOS]