ghusal of the deceased

Q: When filling a bucket with water for ghusal of a deceased, I put my hand inside the water to check the temperature of the water, does the water become must'amal? 

Q: Can a son see the satr of his deceased father? The reason is that there was soo much mess because of Diarrhoea, the person had to look and wipe because the initial wiping was just smearing the faeces in different places. This is for a specific case only, not for all cases.

Q: My question is that, if nikah has terminated with the death of the husband then why can she still bath her deceased husband?

Q:

1. If in todays time, a Muslim man/woman murders someone intentionally, thereafter qisaas is not taken. When this murderer later dies in their life should their ghusl be made and should they be buried in a Muslim qabristaan?

2. If they are killed by the police should their ghusl be made and should they be buried in a Muslim qabristaan?

Q: When a woman is in her haidh, she is not supposed to go near a deceased person. However, what if someone's husband passed away and he passed away at such a place where there is no male to do his ghusl. His mahram women are with him (his mother and sister). His wife is also present there, however she is on her haidh. Who will get the preference of doing his ghusl? Should the mother do the ghusl or shall the wife do the ghusl?

Q: I read in an online fatwa that "In Faatawa Shaamiyah, it is stated that when bathing the mayyit, water should not be too hot as the mayyit also feels pain and is harmed just as the living."

Since this indicates that the mayyit is sensitive for temperatures, does it mean that he may also be harmed when his body is placed in the Mortuary Fridges, where the temperature is cold? Does his feeling end after burial, or will he also feel the cold earth, the insects physically biting him etc?

Q: Is it permissible to recite Qur'an next to a mayyit before he is given ghusal?

Q: Explain in detail the Shar’ee method of giving ghusal to a male or female deceased.