Published Tuesday, 24 March 2009
The teenager, who can't be named for legal reason, appeared before Lisburn Magistrates Court on Tuesday.
He is also charged with membership of a proscribed organisation, the dissident republican Continuity IRA, possession of a firearm with intent and collecting information likely to be of use to terrorists.
His lawyer told the court that his client denied the charges.
Pc Carroll, 48, from Banbridge, was shot dead in Craigavon while answering a call from a woman who had a brick thrown through her window.
Four other people remain in custody being questioned about the murder, as do four arrested over the murder of Sappers Mark Quinsey, 23 from Birmingham and Patrick Azimkar, 21 from London outside Massereene Barracks in Antrim.
On Monday night, two men, aged 27 and 31, who had been questioned for a week about the murder of Pc Carroll, were released without charge.
Detention period
Meanwhile six people being questioned about the murders of Pc Carroll and the two soldiers won the right to challenge the granting of a seven-day extension to their detention period while forensic test results are awaited.
They are the first people to be held in Northern Ireland under the Terrorism Act of 2006 which means they can be held for up to 28 days.
The Northern Ireland Human Rights Commissioner Monica McWilliams has condemned the continued detention of those still held without charge.
She visited the PSNI Serious Crime Suite at Antrim Police Station on Monday night to inspect conditions under which they were being held.
Ms McWilliams said she was worried people were being held for so long in cells designed for short stays.
"We have always been against these lengthy detention periods. The issue should be to charge people or to release them now after this length of time.
"Obviously there are serious issues at stake here, but these individuals would themselves would say `produce the evidence`."
She added: "Some of them have not even been interviewed for a number of days now."
The Real IRA claimed responsibility for murdering the soldiers who were attacked as they collected a pizza from a delivery driver at the gates of the barracks.
The Continuity IRA said they were responsible for the murder of the policeman.