He vowed more such militant attacks and told Pakistani civilians to detach themselves from all military institution, adding: 'We are still able to carry out major attacks. This was just the trailer.'
In the email, the terror group warned Muslims to avoid places with military ties, saying it attacked the school to avenge the deaths of children allegedly killed by soldiers in tribal areas.
It accused the students at the army school of 'following the path of their fathers and brothers to take part in the fight against the tribesmen' nationwide.
A plainclothes security officer escorts students rescued from nearby school during a Taliban attack in Peshawar. Photo / AP
Yesterday, Peshawar began the harrowing process of conducting mass funerals, the family of a teacher torched alive in front of her class by the men gathered to say funeral prayers.
Several photographs of the murders were released by the Pakistani Taliban this morning. All six men were named on Twitter, but their personal details have not yet been independently verified.
The group are seen wearing full military fatigues and posing in front of a white banner daubed with religious slogans.
Following the release of the photographs, authorities in the capital Islamabad issued a letter calling on schools to increase security and to check underneath buses and other vehicles.
It comes as Pakistani Prime Minister Nawaz Sharif this morning reinstated the death penalty for acts of terrorism.
Government spokesman Mohiuddin Wan said: 'It was decided that this moratorium should be lifted. The prime minister approved... Black warrants [execution orders] will be issued within a day or two.'
The moratorium on civilian executions had been in place since 2008.
The first devastating images have emerged of the blood-soaked classrooms where 132 innocent children and nine teachers were massacred by the Taliban.
Horrifying pictures revealed the carnage wrought by seven extremist gunmen who sprayed children with bullets as they sat receiving first aid tuition and exploded suicide bombs in a room of 60 pupils.
As the Pakistani city of Peshawar began the harrowing process of conducting mass funerals, the family of a teacher torched alive in front of her class gathered to say funeral prayers.
Tahira Kazi, the principal of the Army Public School and College in Peshawar, was set on fire by jihadists who slaughtered so many.
It is believed she was targeted because she is married to a retired army colonel, Kazi Zafrullah. The picture obtained by MailOnline shows her standing proudly next to a student believed to be her son.
Pictures of a blood splattered doorway leading to an auditorium and the scene of the final gun battle also emerged.
In a grim tour of the building photographers were shown inside the auditorium.
The floor is caked in blood in places and dozens of chairs lie in disarray, knocked over by children running for cover as the terrorists hosed them with bullets.
The lucky ones, it transpired, survived by playing dead under these chairs as the gunmen stalked the room, searching for children they'd missed.
An injured boy looks up from his hospital bed. Photo / AFP
The emergence of the photographs comes as it was revealed the man who ordered the bloody slaughter of the 132 children is Maulana Fazlullah - the head of the country's Taliban terror group and a man whose previous crimes include ordering the murder of teenage education campaigner Malala Yousafzai.
Fazlullah is understood to have demanded that his lieutenant Umar Naray managed the operation, and communicated with the gunmen directly from his base over the border in Afghanistan.
'His communications have been intercepted as well which helped security agencies in tracing his location and whereabouts which was urgently shared not only with the Afghan army but also with Nato forces,' a security source was quoted as telling Peshawar's Dawn newspaper.
The firebrand militant, whose thick black beard reaches halfway down his chest, took control of the Pakistani Taliban 13 months ago, and it is thought yesterday's massacre may have been his barbaric revenge for Malala, 17, being award the Nobel Peace Prize earlier this year.
Whatever his twisted motive, Fazlullah has succeeded in uniting the world in revulsion once again.
As people around the world united to condemn the attack, the Taliban gloatingly published pictures of the fighters responsible for the slaughter.
A series of images shows them lined up with assault rifles and rocket launchers.
The massacre led to calls for the death penalty to be restored. 'It was decided that this moratorium should be lifted. The prime minister approved,' said government spokesman Mohiuddin Wan, referring to Prime Minister Nawaz Sharif's approval of the decision by a ministerial committee.
A moratorium on the death penalty was imposed in 2008 and only one execution has taken place since then.
The government declared a three-day mourning period, starting this morning.
In the hope of cementing his legitimacy as leader, Fazlullah married the daughter of Sufi Muhammad, who founded Tehreek-e-Nafaz-e-Shariat-e-Mohammadi in 2002. Rumours that his henchmen kidnapped the bride and forced her to marry him have dogged Fazlullah ever since.
While in jail, Muhammad ordered Fazlullah to adopt his new name and sent him reams of radical Islamic literature designed to assist and guide his son in law.
By the time Muhammad was released from prison in 2008, Fazlullah's leadership was secure enough for its founder not to resume control.
Taliban leader Maulana Fazlullah.
Later that year Fazlullah allied Tehreek-e-Nafaz-e-Shariat-e-Mohammadi with the Pakistani Taliban, and he started taking direct orders from Taliban leader Hakimullah Mehsud.
This relationship would allow Fazlullah to become increasingly close to senior figures in the terror group.
While taking orders from the Pakistani Taliban, Fazlullah controlled more than 4,000 fighters - helping him to effectively run a parallel government in the Swat Valley and impose strict Sharia law across 57 villages.
It was while governing the Swat Valley that Fazlullah began using FM radio stations to broadcast his firebrand sermons in the area, earning him the nickname Radio Mullah.
Pakistan army soldiers stand outside the auditorium of an Army Public School a day after an attack on the school, in Peshawar.
His rantings about 'sins' such as television, music, and computers were deemed compulsory listening among the villagers as the Taliban imposed a rigorous version of Islamic law, publicly beheading and flogging wrongdoers and burning schools.
Later in 2007 the Pakistani military forced the band of jihadis out of Swat Valley and arrested Fazlullah's brother. Fazlullah fled to Afghanistan where he was believed to have been seriously injured in 2009 before returning to Swat.
That same year Fazlullah told BBC's Urdu Service that he planned to launch fresh attacks on the Pakistani military in the area.
Pakistani journalists film and photograph inside an auditorium of the Army Public School attacked the day before by Taliban gunmen, in Peshawar.
Over the following three years Fazlullah's band of militants carried near constant cross-border raids on the Swat Valley and seized more and more territory along the frontier region. In 2012 Reuters indicated that Fazlullah controlled a 12 miles stretch of land in Afghanistan's Nuristan province.
It was during this time that Fazlullah ordered the death of Malala Yousafzai - the teenage education campaigner who almost died when a masked gunman in Swat Valley jumped into a vehicle taking girls home from school and shouted 'Who is Malala?' before shooting her in the head.
Former Taliban leader killed
Last November Taliban leader Hakimullah Mehsud was killed by a U.S. drone strike, leading to the Taliban's supreme council electing Fazlullah as its new head.
Since then, the militant has specialised in the kind attention grabbing savagery that deflects attention away from the Taliban's declining influence in Swat Valley, which has been eroded by bitter feuds broke out with local clans - including the traditionally dominant Mehsud tribe.
Fazlullah has also found his power reined in by the Pakistani military's fresh push into the Taliban's former North Waziristan stronghold.
In September Fazlullah also declared the Taliban's support for the Islamic State and vowed to send fighters to assist the terror group as it was wages bloody war in Syria and Iraq.
'Oh our brothers, we are proud of you in your victories. We are with you in your happiness and your sorrow,' Pakistani Taliban spokesman Shahidullah Shahid said in a statement issued to mark the Muslim holy festival of Eid al-Adha.
'In these troubled days, we call for your patience and stability, especially now that all your enemies are united against you. Please put all your rivalries behind you,' he added.
'All Muslims in the world have great expectations of you . We are with you, we will provide you with Mujahideen [fighters] with every possible support,' he said.
The brutal massacre of schoolchildren is widely seen as an attempt by Fazlullah to prove to his rivals that the Taliban is still a relevant force.
The strategy may not be particularly well thought out, however, as it is only likely to add to the tribal divisions that have drastically weakened the group over the past year.
- Daily Mail
