A Southern California couple suspected of starving and shackling some of their 13 children pleaded not guilty Friday to new charges of child abuse.

David and Louise Turpin previously entered not-guilty pleas to torture and a raft of other charges and are being held on $12 million bail.

Louise Turpin also pleaded not guilty to a new count of felony assault.

Louise Turpin, dressed in a blouse and blazer, looked intently at more than a dozen reporters in the courtroom. David Turpin, wearing a blazer, tie and black-rimmed glasses, kept his eyes on the judge during the hearing. Both said little except to agree to a May preliminary hearing.

The couple was arrested last month after their 17-year-old daughter escaped from the family's home in Perris, California, and called 911. Authorities said the home reeked of human waste and evidence of starvation was obvious, with the oldest sibling weighing only 82 pounds.

The case drew international media attention and shocked neighbors who said they rarely saw the children, who appeared to be skinny, pale and reserved.

Authorities said the abuse was so long-running the children's growth was stunted. They said the couple shackled the children to furniture as punishment and had them live a nocturnal lifestyle.

The children, who range in age from 2 to 29, were hospitalized immediately after their rescue and since then Riverside County authorities, who obtained temporary conservatorship over the adults, have declined to discuss their whereabouts or condition.

Attorneys representing the adult siblings told CBS News, however, that the seven are living at Corona Medical Center, where they have an outdoor area for sports and exercise, and are making decisions on their own for the first time.

The Supreme Court agreed Friday to wade into the issue of sales tax collection on internet purchases in a case that could force consumers to pay more for certain purchases and allow states to recoup what they say is billions in lost revenue annually.

Under previous Supreme Court rulings, when internet retailers don't have a physical presence in a state, they can't be forced to collect sales tax on sales into that state. Consumers who purchase from out-of-state retailers are generally supposed to pay the state taxes themselves, but few do. A total of 36 states and the District of Columbia had asked the high court to revisit the issue.

Large brick-and-mortar retailers like Walmart and Target have long bemoaned the fact that they have to collect sales tax on online purchases because they have physical stores nationwide. Meanwhile, smaller online retailers, who don't have vast networks of stores, don't have to collect the tax where they don't have a physical presence.

Internet giant Amazon.com fought for years against collecting sales tax but now does so nationwide, though third-party sellers on its site make their own decisions. But the case before the Supreme Court does directly affect other online retailers, including Overstock.com, home goods company Wayfair and electronics retailer Newegg, who are part of the case the court accepted.

States say the court's previous rulings have also hurt them. According to one estimate cited by the states in a brief they filed with the high court, they'll lose out on nearly $34 billion in 2018 if the Supreme Court's previous rulings stand. The Government Accountability Office, which provides nonpartisan reports to Congress, wrote in a report last year that state and local governments would have been able to gain between $8.5 billion and $13 billion in 2017 if they could require out-of-state sellers to collect tax on sales into the state. All but five states charge a sales tax.

The U.S. Supreme Court has halted the execution of an Alabama inmate whose attorneys argue that dementia has left the 67-year-old unable to remember killing a police officer three decades ago.

Justices issued a stay Thursday night, the same evening that Vernon Madison was scheduled to receive a lethal injection at a southwest Alabama prison. The court delayed the execution to consider whether to further review the case.

Madison was sentenced to death for the 1985 killing of Mobile police Officer Julius Schulte, who had responded to a call about a missing child made by Madison's then-girlfriend. Prosecutors have said that Madison crept up and shot Schulte in the back of the head as he sat in his police car.

Madison's attorneys argued that strokes and dementia have left Madison unable to remember killing Schulte or fully understand his looming execution. The Supreme Court has previously ruled that condemned inmates must have a "rational understanding" that they are about to be executed and why.

"We are thrilled that the court stopped this execution tonight. Killing a fragile man suffering from dementia is unnecessary and cruel," attorney Bryan Stevenson, of the Equal Justice Initiative, said Thursday after the stay was granted.

The Alabama attorney general's office opposed the stay, arguing that a state court has ruled Madison competent and Madison has presented nothing that would reverse the finding.

Three backers of Catalonia's independence sought Thursday to get released from jail for their role in the region's push to break from Spain, which triggered the country's worst political crisis in decades.

Former Catalan interior minister, Joaquim Forn, Jordi Sanchez, a member of pro-independence civic group National Catalan Assembly, and Catalan activist Jordi Cuixart made their cases to a Spain Supreme Court judge. A ruling from Judge Pablo LLarena is not expected Thursday.

Forn was one of several regional ministers jailed on provisional charges of rebellion after the regional parliament unilaterally — and unsuccessfully — declared Catalonia an independent republic Oct. 27.

The action prompted the Spanish government in Madrid to remove the region's government from office, dissolve the parliament and call a fresh election that was held last month.

Sanchez and Forn were elected on separatist party tickets, but the Spanish government still is running Catalonia.

Sanchez and Cuixart had been jailed earlier on provisional sedition charges related to preparations for an Oct. 1 independence referendum, which Spain's Constitutional Court had suspended.

All three supporters of Catalan independence told the judge they would oppose further unilateral moves to secede and act in accordance with Spanish law, according to lawyers familiar with the proceedings.

The lawyers requested anonymity because they weren't authorized to discuss what was said during the closed-door hearings.

The lawyers said Sanchez acknowledged that the Oct. 1 referendum was not legally valid. Forn, who as interior minister oversaw Catalonia's security and its regional police, said he would not accept the post again, if he were asked to.

Developments surrounding Catalonia have gripped Spain for months, and the tumult is showing no sign of letting up before the new parliament's first session on Wednesday.

A court order blocking Louisiana from carrying out any executions has been extended indefinitely after the death of the federal judge who issued it.

A lawsuit challenging the state's lethal injection protocols has kept death sentences on hold since 2014. U.S. District Judge James Brady, who died Dec. 9 after a brief illness, oversaw the lawsuit and agreed to order the temporary stay of all executions.

Brady's order was due to expire next Monday, but U.S. District Judge Shelly Dick agreed Thursday to extend it until another judge is assigned to the lawsuit.

Louisiana has 72 inmates on death row, according to state corrections department spokesman Ken Pastorick. The state's last execution was in January 2010, when it carried out a death sentence for Gerald Bordelon, who was convicted of killing his 12-year-old stepdaughter in 2002.

Drug shortages have forced the corrections department to rewrite its execution plan several times since 2010. Under the state's current execution protocols, its primary method is a single-drug injection of pentobarbital, a powerful sedative. The alternative method is a two-drug combination of the painkiller hydromorphone and the sedative midazolam.

The most recent order that Brady issued to halt executions — at the request of Louisiana Attorney General Jeff Landry — is limited to death row inmates who are plaintiffs in the litigation. But others can join the lawsuit if an execution date is set by the courts.

A Democratic judge has announced his candidacy for a seat on the Ohio Supreme Court. Michael Donnelly currently serves on the Cuyahoga County Court of Common Pleas in Cleveland. He said Thursday he's running for the high court this year.

There are two November races for seats on the seven-person court. One is for an open seat being vacated by the retirement of Republican Justice Terrence O'Donnell. The second is for a seat being vacated this month by Democratic Justice William O'Neill, who is running for governor.

Gov. John Kasich is expected to appoint a fellow Republican to fill O'Neill's seat, and that person will then choose whether to run for the full six-year term.