NORWICH – A mother accused of working with her husband to kill their adopted son pleaded guilty to manslaughter charges on Tuesday, and is expect to serve a maximum of 11 years in prison after discussing details of the crime.

Heather Franklin, 34, of Guilford pleaded guilty to first-degree manslaughter, a class B felony, third-degree arson, a class C felony, and tampering with physical evidence, a class E felony.

Prosecutors said at around midnight on March 1, 2017 at their home at 457 State Route 8 in the Town of Guilford, Heather Franklin worked with her husband to kill their 16-year-old disabled son Jeffrey Franklin and burn the evidence.

According to Chenango County Court Judge Frank Revoir, Jr., Franklin could have served 25 years to life in prison if convicted on the second-degree murder charge at trial. Revoir said a significant aspect of the plea agreement revolved around the recent conviction of her husband and co-defendant, Ernest Franklin.

At the time of her plea, Heather Franklin testified about her adopted son's death and the plan she made with her husband to destroy the evidence. Franklin said she didn't kill her son.

More information, including Franklin's testimony, will appear in Wednesday's edition of The Evening Sun.