"Ms. Carter needs to further address her causative factors that led to the governing offense," the board wrote. "Release does not meet the legal standard."
On the second anniversary of Hurricane Maria, Puerto Ricans grieve the thousands who died and demand that presidential candidates make the island a campaign issue.
Two people were confirmed dead in the flooding, and rain is expected to continue Friday, making Imelda the 7th-wettest tropical cyclone in U.S. history.
The four were siblings — two boys ages 6 and 13, and girls ages 8 and 10, officials said. The 6-year-old is expected to survive his injuries.
Jeremiah Button disappeared in 2016, weeks before he was to go on trial on child sex-assault and child-pornography charges. He was found in August in a makeshift, solar-powered bunker.