MARION COUNTY, Fla. -

The trial for the two siblings charged in connection to the slaying of a Marion County teen continued on Friday with another suspect being called to the stand.

Kyle Hooper, 17, and his sister, Amber Wright, 16, are being tried together in the same courtroom, but with two separate juries. They are both accused of taking part in the murder of Wright's ex-boyfriend, 15-year-old Seath Jackson, who was beaten and shot to death in 2011.

One of the others involved in Jackson's death, Charlie Ely was called to testify on Friday. She pleaded the Fifth Amendment. 19-year-old Ely was convicted and received a life sentence last fall.

Authorities believe Hooper hated Jackson and took part in beating him, then later mutilating and disposing of his body. Arrest reports say Jackson's body was burned, and his remains were placed into paint cans and tossed into a limestone pit.

A Marion County judge sentenced one of the other five co-defendants in Seath's murder, 21-year-old Justin Soto, last month after he pleaded guilty to first-degree murder.

Still facing first-degree murder charges in addition to Hooper and Wright is 20-year-old Bargo.