One of the men accused of killing Tim Bosma told his girlfriend that the other man charged in connection with the death was the only person at fault, jurors heard Thursday.

Dellen Millard and Mark Smich are both charged with first-degree murder in connection with the May 2013 death of Bosma, who disappeared after taking two men on a test drive of his truck.

The sole witness to testify Thursday was Marlena Meneses, who was dating and living with Smich at the time of Bosma’s death.

Meneses testified that she knew Smich and Millard to be “really close, like brothers.”

“I would say Mark cared for Dellen more than he cared for other people,” she said, adding later that Millard paid for Smich’s cellphone.

Testimony soon turned to the days around the time of Bosma’s disappearance.

Two days before the disappearance, jurors heard, Meneses overheard Smich, Millard and another friend saying that they wanted to steal a truck.

“I didn’t really understand it because from what I knew, Dellen had a lot of money,” she said.

Meneses then said that the following night, Smich and Millard told her outright that they were going on a test drive and planned to steal a truck.

“I said something to try to change his mind, but nothing changed his mind,” she said.

Meneses testified that she didn’t know where the theft was to take place or exactly what type of truck Smich and Millard were looking for.

Jurors heard that Meneses and Smich had one brief phone call after he left.

“He told me he was driving and he was busy,” Meneses said, dating the call to sometime around 9 p.m. on May 6, 2013 – the night Bosma disappeared.

Once they returned, Meneses said, the friends were “very happy” – and while they didn’t explain exactly what had happened, they said their “mission” had turned out well.

Testimony then turned to May 10, when Millard was arrested. Meneses said she learned of the arrest when she saw it on TV, and asked Smich why he was arrested.

“I don’t know, I wasn’t around for that – he did everything,” she recalled her boyfriend responding.

Smich was making a lot of phone calls that day, Meneses said, and explained them by saying he was trying to get drugs out of Millard’s home.

When the subject of Bosma’s death came up later, Meneses said, Smich was more forthcoming.

“He just said that Dell murdered him, that he shot him,” she testified.

“He told me he did nothing and that Dell did it all.”

Jurors heard that when Smich was arrested on May 22, Meneses was placed in handcuffs as well.

“He was yelling, screaming, telling me not to stay anything,” she said.

Prior to Thursday’s testimony, jurors were told that anything Meneses said Smich said about Millard should be considered hearsay, and could not be used to make determinations about Millard’s guilt.

The trial resumes Monday, with defence lawyers cross-examining Meneses.