Unless a major bombshell occurs during trial - like a victim changing her statement or evidence tampering - I see him being convicted on all counts except perhaps the 2 counts of aggravated murder, since the only evidence to those crimes are anecdotal.
If it comes to a trial, the defense may be something like "they stayed in the house voluntarily."
I think that defense would be somewhat laughable since we all know the story about how bystanders had to break down the front door to help them escape.
The boarded up windows and locked doors would be a pretty good indication that they were not staying in the house voluntarily.
My FIL believes the women must have liked being there or they would have found a way to escape. I'm sure there are other fools who think the same way. The defense only needs one of them to hang the jury or even sway the other jury members into voting not guilty. I know it seems impossible but if Casey Anthony, who was so obviously guilty, can walk away scott free, why not Castro? I lost all faith in our court system after the OJ trial.
Ariel Castro, 52, appeared in court for a brief hearing as Cuyahoga County Judge Michael Russo said he was aiming to begin the trial by Aug. 4, meeting a 90-day speedy trial requirement. Castro was arrested May 6, and the speedy trial requirement could be waived to allow more preparation time.
snip...More charges are possible. McGinty told the judge that additional evidence would be presented to a grand jury over the next few weeks.
http://www.ajc.com/ap/ap/crime/hearing-for-ohio-man-accused-of-kidnapping-3-women/nYPQ6/
Usually defendants will waive that speedy trial and go for a later trial date to allow more time for the attorneys to prepare their case.
The big question seems to be whether or not the prosecution will seek the death penalty. In order to do that the prosecution will have to provide evidence that Michelle was pregnant, and that Castro did cause the miscarriages. Defense says so far they haven't seen any evidence that shows that.