IMO Sheppard's explanation that a stranger came into his house knocked him out -- twice -- and beat his pregnant wife to death is utterly unbelievable.
Sheppard had a life after prison, including a two more wives, one of whom accused him of violence.
At the end of his life Sheppard was drinking a fifth of vodka daily. IMO he was already into alcoholism when he killed his wife probably in a drunken rage.
Alternatively, it is remotely possible that the handyman was hired by Sheppard to actually kill the wife but it is not possible -- IMO -- that the killer could only manage to knock out the man of the house but kill the woman.
Thanks for your insight in the Sheppard case. I was under the apparently false impression that the second trial in 1966, with cleared him, was the final word on the story. I read some more on this case on several website and am now more confused than ever as to whether Dr. Sheppard committed the murder(s).