Oh there is definitely that chance, and there has been much discussion about it here. It seems that due to the suspicious nature of Terri's injuries when she was taken to the ER an investigation was suggested by ER personnel. My understanding is that when questioned at that time if the Schindlers had any reason to suspect foul play, that they said "no." Of course, at that time they didn't. It wasn't until testimony some time later that they discovered that Terri's brother Bobby had known that Michael was abusing Terri and was protecting, I presume, her parents from that knowledge. They had no way of knowing what a scoundrel Michael would turn out to be.
I'm not sure how many of the threads you have read, but there is a great deal of information. I would suggest that you look at the following ones:
Terri's Fight - (Daily Thread/Updates) October 30-31, 2003
EXCLUSIVE INTERVIEW - Schindlers Respond to Michael Schiavo's Larry King Love-Fest - PART 2
Thanks for your kind responses, and special thanks for the links, sweetliberty. The links answered many of my questions, and validates my feelings that Michael is evil.
Got room for me on your ping list? Thanks again