More than four years after Jana Sue Roberson was bludgeoned to death in her Erath County home, the second suspect in the case was sent to prison Tuesday.

Nila Sue Nicole Sechrist, 20, pleaded guilty to three felony offenses in the 266th Judicial District Court, including conspiracy to commit murder, a second-degree felony; tampering with physical evidence, a third-degree felony; and possession of less than one gram of methamphetamine, a state jail felony.

Sechrist was sentenced to two 10-year terms and one 2-year term, set to run concurrently.

In exchange for her guilty plea, two first-degree felony offenses stemming from Roberson's January 2007 death - murder and aggravated robbery - were dismissed.

The cases against Sechrist were transferred to district court in May of this year, once it was determined new evidence in the murder case had been obtained.

At the time of the murder, Sechrist was a juvenile - 15 years old - and the girlfriend of the victim's adopted son, Cody Roberson.

Cody pleaded guilty to the murder in September 2007 and was sentenced to 50 years in prison. While he had implicated Sechrist in his mother's death and agreed to testify against her, he died in prison in April.

From the beginning of the investigation, Sechrist admitted being at the crime scene but said she did not participate in the murder. She led investigators to the murder weapon - a baseball bat.

Sechrist has been in the Erath County Jail since her arrest on the drug-related offenses in June 2010, and was returned to jail following the proceeding Tuesday to await transfer to prison.

For more on the story, including comments from District Attorney Jason Cashon and the victim's husband, Jim Roberson, read Wednesday's edition of the Empire-Tribune.