PUTNAM COUNTY, Fla. — UPDATE: The Putnam County Sheriff's office says deputies have arrested Mark Wilson, Jr. of Melrose for the killing of Robert Baker, 12, and Tayten Baker, 14.
Investigators say Wilson is well known to the family. He was arrested and charged with two counts of first-degree murder.
A news conference is planned for 10 a.m. Friday regarding the arrest.
The deaths of the two boys in Melrose have been confirmed as homicides, according to the Putnam County Sheriff's Office.
An autopsy report was done on the two boys, ages 12 and 14, Thursday.
The boys were found dead inside a mobile home on Shiloh Road Tuesday. Deputies say the boys' mother and sibling were inside the home, but weren't injured.
The boys' father is a long-distance truck driver who was not home at the time of the incident, deputies said.
PCSO confirmed that a family recently moved to the area and consider this to be an isolated incident. Their parents are cooperating with investigators and are not being looked into, deputies say.