Why can't the court take over legal guardianship and order the tests? If there is substantiated reason to believe he is the cause of her injuries, then that should be done. I am surprised that the hospital did not order it done when they were sued, or rather their attorneys.
There is a recent development [this afternoon, Monday, Feb 21] that the removal of the feeding tube is suspended and a special hearing will be on Wednesday, Feb 23, about this issue.
Some folks approached the judge about his Southern Baptist beliefs, and it appears to be working...
Please pray... And keep your innocence and faith close to your heart -- as well as your charity.