SummerFeverVenice
Yes they were taken hostage alive
They certainly all were not.
Several were definitely taken to Gaza when they were already dead. I myself know of the following
Asaf Hamami, IDF - killed defending Kibbutz Harim and his body taken to Gaza (survivor accounts)
Shani Louk - killed at festival and taken to Gaza -( video of her body on pickup truck clearly shows she was dead but part of her skull was found at the festival site)
Joshua Mollel - his kidnap then his murder at the roadside and partly dressed body taken to Gaza on a pick up truck was all captured on Hamas bodycam footage.
I have also seen body cam footage taken back in Gaza on the 7th of an elderly Israeli whose half naked body was being stamped on in the street by Palestinians and an IDF soldier's headless body being stomped on in the street.
I'm sure if I searched I could find other examples as well.
The barbarity of 7 October appears to be boundless.
BTW they've admitted Yossi Sharabi was killed when they bombed a Hamas position close to where he was being held.