What can be done if trustees are crooked?

What does a beneficiary to a trust do when there was a conservatorship prior to the trustee being a trustee where the present trustee was the conservator and spent, moved or squandered all of the money and money from properties but the trust says they are waived from an accounting except by court order? There is evidence to prove prior assets and accounts and bad faith including elder abuse but never prosecuted for or brought to light in the proper manor to change the outcome. The trust does however state that if the trustees act in bad faith that they will be held accountable but the lady died. Can an accounting be requested for the conservatorship period? We have documents that hold firm evidence and witnesses but we do not know how to get help. This woman was literally kidnapped by her family and starved to get her to perish sooner. We need help desperately because this family is wrong for what they did and are doing now to the adopted son who suffers from depression type problems that he is currently collecting SSI from. They are forcing him to move and are threatening to evict him. The property was sold for 4.5 million dollars and this family has been like straight vultures circling this poor lady since I knew her. From the beginning she was having difficulties with them such as when she had a stroke in 2002, her family threw away her clothes from her closet in the garbage so when she came home, she saw they had wrote her off as dead. Her only wish was to die in her home and she was taken against her will to a convalescent hospital and told she would die that week. There are police reports from her caregiver. If brought to light, the people in my opinion should be put in jail. They may have even killed her. the property was sold on a lease option 5 days before she even died at the conversant hospital and no one even came to tell the son or even attended the funeral. They say that there is no money in the trust, that it is property rich and cash poor.