OCALA, Fla. -

The trial has begun for the man accused of firing the shots that killed 15-year-old Seath Jackson in Marion County in 2011.

21-year-old Michael Bargo is accused of killing and along with four others, beat, burned and dismembered Seath in April 2011.

39-year-old James Havens, who helped dump Seath's body, testified on Wednesday that he heard Bargo say he wanted to kill Seath. Havens said he was at the house where Seath was killed but left before it happened, then got a call from Bargo.

Havens said Bargo told him "the deed is done."

Havens said the next day, he picked up Jackson and Justin Soto, who loaded the buckets into his truck. Havens testified he didn't know what was in the buckets, but prosecutors say it was Jackson's remains that they dumped into a rock pit off of State Road 40.

The defense says Havens has a motive to "say anything" to push himself into "accessory after the fact."

Bargo is the last for five suspects to go on trial for Seath's death and is the only one facing the death penalty.