41 years ago the Manson Family committed the Tate/LaBianca murders. Should they be released?

After 41 years of imprisonment is it time for Charles "Tex" Watson, Leslie VanHouten, Patricia Krenwinkel and Charles Manson to be freed from jail? Keeping in mind that when Sharon Tate in particular was murdered she was 8 months pregnant with a baby boy less than 2 weeks to full term delivery. During the autopsy of Sharon Tate they removed her baby boy and buried the 2 of them together with her dead baby in her arms. They are buried together and the baby boy was given the name of "Paul". Is it time for the Manson Family to be forgiven of these horrific crimes and released? Do they have any thing positive to contribute to society with their experience outside and inside of prison?