Sandra Layne Case: Mich. grandmother to be sentenced in grandson's shooting death

Sandra Layne testifies in the Oakland County Circuit Courtroom of Judge Denise Langford Morris in Pontiac, Mich., Wednesday, March 13, 2013. The 75-year-old woman charged in the slaying of her teenage grandson said she shot him in self-defense because she feared the drug-crazed 17-year-old would harm her. (AP Photo/Paul Sancya)
Paul Sancya
Sandra Layne testifies in the Oakland County Circuit Courtroom in Pontiac, Mich. on March 13, 2013.
PAP Photo/Paul Sancya

(CBS/AP) PONTIAC, Mich. - Sandra Layne, a 75-year-old Detroit-area woman, is returning to court for her sentence in the fatal shooting of her teen grandson.

PICTURES: Grandma convicted of murdering grandson

Layne is asking for just a year in custody for second-degree murder, which would be in addition to a mandatory two-year sentence for using a gun. But she also will get credit for 11 months in jail.

Jonathan Hoffman was shot six times, including twice in the back, last year in West Bloomfield Township. Layne says she shot him out of desperation during a physical altercation, but a jury rejected her claim of self-defense.

A 911 call reveals the 17-year-old being shot again while pleading for help. Prosecutors say Layne's guidelines call for a minimum of 12 years in prison for the murder, plus two years for the gun crime.

Layne is set to be sentenced at 2 p.m. in Oakland Circuit Court before Judge Denise Langford Morris.

Complete Coverage of Sandra Layne on Crimesider