There is evidence that Michael traumatized Terri by physically abusing her (x-rays from 1991). The family has even offered NOT to pursue charges against him for possible abuse and attempted murder. He still won't bite. Perhaps he fears if evidence is compiled against him the family won't be able to stop the authorities from his prosecution.
However, there is definitely a POWER and CONTROL thing (on Michael's part) occurring here and also the Euthanasia crowd has much at stake in Terri's case.
Schiavo hates the Schindler family with a passion greater than his lust for money. Killing Terri is in part vengeance on her natural family. Schiavo gets "high" whenever Terri comes close to death. The last two times he went into deep depression after death was denied at the last minutes. He is also one of the most self-centered persons that I have ever seen in the national arena. What has always amazed me is his popularity in FL!
There is no evidence that MICHAEL traumatized anyone. There may be evidence that Terri was physically abused.
I find it difficult to believe that there's this evidence that EVERYONE seems to know about but the police won't investigate.