But Shayanna Jenkins also said for the first time that the box smelled skunky and she thought it contained marijuana, undercutting prosecutors' attempts to suggest the box contained crucial evidence — or even the weapon used to kill Odin Lloyd.
Jenkins, 25, is Hernandez's high school sweetheart and the mother of his 2-year-old daughter. She was compelled to testify under a grant of immunity and was called to the stand for a second day Monday by prosecutors. She completed her testimony that afternoon.
Hernandez, 25, is charged with killing Lloyd on June 17, 2013. Lloyd, 27, was dating Jenkins' younger sister, Shaneah. He was found shot to death in an industrial park less than a mile from the home Hernandez and Jenkins share.
Jenkins, wearing her large diamond engagement ring, said on questioning from Assistant District Attorney William McCauley that Hernandez called her the day after Lloyd was killed and told her it was important to toss the box.
"He told me to go downstairs in our storage room and remove a box from our home," Jenkins said. "I believe he said it was important."
Downstairs, she found a cardboard box of 35 to 40 pounds, open on top, that had smaller boxes and cardboard inside, obscuring what was underneath, she said. Jenkins said she didn't look inside the box or ask Hernandez what was inside. Instead, she said, she put it inside a trash bag and covered it with baby clothing, then borrowed her sister's car and drove around.
She said she threw it in a trash bin but could not remember where.
"I don't know. I found a random dumpster," she said.
Prosecutors have said the box may have held evidence or the murder weapon, which was never found.
The testimony contradicts in part what she told a grand jury that investigated the killing, saying then that no one told her to remove the box and that it wasn't important to her to do it. She said then that she did not remember where she threw it away. She was charged with perjury for that testimony and has pleaded not guilty.
When asked how she could not remember where she disposed of the box, Jenkins said she was nervous at the time.
"I really had to play a neutral role as far as trying to comfort my sister. Everyone's emotions were kind of on me," Jenkins said.
Her sister, Shaneah Jenkins, who was sitting next to Lloyd's mother, left the courtroom soon afterward. A few minutes later, Shaneah returned, and some jurors glanced toward her as Jenkins continued to testify.
Hernandez lawyer Charles Rankin asked Jenkins if the box was closer to 20 to 25 pounds, as she had testified before the grand jury. She said that might be a more accurate estimate. He then asked Jenkins if she smelled anything, and she said it smelled "skunky."
"Did you have a thought about what was in there?" he asked.
"I did," she replied, adding, "That it was marijuana."
McCauley then went back at her, pointing out that it was the first time she has mentioned a smell. Rankin then noted she had never been asked about a smell or what she thought was inside the box.
Shayanna Jenkins also testified about what happened after Hernandez came back early the morning of June 18, after he had gone to the North Attleborough police station at the request of investigators.
"I believe I asked him at that point if he did, did it, and he said no," she said.
Hernandez watched Jenkins intently for much of her testimony, but she didn't look at him. She broke down and cried during questioning from Hernandez's lawyer as she talked about catching him cheating and about making a decision to work things out with him and to "compromise" on his behaviour.
"That included infidelity," she said.
The couple exchanged brief glances as she concluded her testimony and left the courtroom.