What methods are commonly used to find the time of death?
There are two very common methods.
* The rate method. It measures all the changes that there has been in the body since it was killed.
* The concurrence method. It compares events that happened that day at that time or close to that time, so the investigators can relate them with the crime.

What factors are considered in Algor Mortis?
temperature of the body, size of the body, clothing and coverings, air (humidity and movement of it), and immersion in water.

How does the environment affect the time of death?
Because it all depends on the circumstances the body died. The temperature it was that time can change the body temperature, also other things that can make it difficult for investigators are maybe animals, the dust in the crime scene, and some factors of the algor mortis.

What can you tell about the different methods of temperature reading of the body? Do they make a difference in the results?
There is no exact method we can use to know how did it die, how was it murdered, when was it killed, etc. All the methods investigators use are just to approximate to the actual results.