She pleaded guilty on the condition that she be spared the death penalty .
Knorr initially pled not guilty but then made a deal with the prosecution after learning that her son Robert , Jr. agreed to testify against her in exchange for a reduced sentence .
Knorr pleaded guilty on the condition that Knorr be spared the death penalty .
Knorr initially pled not guilty but then made a deal with the prosecution after learning that her son Robert , Jr. agreed to testify against her in exchange for a reduced sentence .