Well just a false flag in attempt to divert attention from civilian disorder in India and take away people's attention away to Pakistan as it has always been done in past ..
Instead of capturing Delhi rape victims.
India has always used Pakistan as a lightening rod , to attrack lightening in past and divert all the attention to Pakistan instead of its issues.
Also its not suprise that we recently had some more cases of bombings in Pakistan since the Indian firing killed a Pakistani Soldier
earlier on
There is no history of Beheading in Pakistan , as in Pakistani circles POW are normally treated well and returned home. Beheading is normally done by 3rd party that do not want witness to the event so they can blame someone else for their actions
There were some Maoist rebel attacks recently as well
"Beheading" is not a formal Military teaching of Pakistan Military unfortunately and its a tell tale sign that such actions are act of a 3rd party
If we had such notion then Terrorist in Pakistan would have been beheaded instead of putting them in prisons (and then releaseing them after peace negotiations with Talibans)