I came across this resource for families It is a lengthy article but well worth the read. I wish I would have came across something with this much information when Michael was first murdered You can check it out below.
https://ojp.gov/ncjrs/virtual-library/abstracts/handbook-families-and-friends-homicide-victims
It is from the U.S. Department of Justice so it is a reliable source.
Beyond Unsolved Murders 
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