Crime Man Gets 15 Years to Life for Killing Wife, Having Kids Open Christmas Gifts in Front of Her Body Za'Zell Preston's daughter testified she remembered her mother's body being cold By Harriet Sokmensuer Published on June 7, 2021 03:25 PM Share Tweet Pin Email Za'Zell Preston. Photo: facebook A California man who killed his wife and propped her up on Christmas morning so that her children would open gifts in front of her body has been sentenced to prison. On Friday, William Wallace was sentenced to 15 years to life in prison after being convicted of second-degree murder in the 2011 death of 26-year-old Za'Zell Preston, the Orange County Register, the Associated Press and the Southern California News Group report. He was given credit for the nine years he has already spent behind bars. According to authorities, at some time between Dec. 24 and Dec. 25, 2011, Wallace attacked Preston while her three children — who were then 3, 8 and a newborn — were in the apartment. Want to keep up with the latest crime coverage? Sign up for PEOPLE's free True Crime newsletter for breaking crime news, ongoing trial coverage and details of intriguing unsolved cases. During Wallace's trial, prosecutors said he placed Preston on the couch with sunglasses on and had her kids open presents in front of her body on Christmas Day, according to the Register. William Wallace. Orange County Jail Man Convicted of Murder After Killing Wife and Having Kids Open Christmas Gifts in Front of Her Body Preston's then 8-year-old daughter, now 18, testified that she remembered her mother's body being cold. Prosecutors also said Wallace told their children, "Mommy ... got drunk and ruined Christmas," the News reported. Man Propped Slain Wife on Couch, Then Had Kids Open Christmas Gifts in Front of Body, Prosecutors Say According to prosecutors, Wallace had spent time in jail for attacking Preston in the past. Before her death, the mother-of-three was studying to be a domestic abuse counselor. "A young mother finally losing her life after years of violence at the hands of her husband is a heart wrenching tragedy," Orange County District Attorney Todd Spitzer said in a statement following Wallace's conviction in April. "That heartbreak is only exacerbated by the fact that her children witnessed much of the violence and were forced to celebrate Christmas in the presence of their dead mother. That is not a Christmas memory any child should be forced to have." "We all have an obligation to speak up against violence of any kind, especially domestic violence where the victims are so fiercely controlled by their abusers," Spitzer continued. "The cycle of domestic violence is a vicious one and I want every victim of domestic violence to know that they are not alone. No one should have to live in fear of violence in their own home." If you are experiencing domestic violence, call the National Domestic Violence Hotline at 1-800-799-7233, or go to thehotline.org. All calls are toll-free and confidential. The hotline is available 24/7 in more than 170 languages.