Last Updated Mar 7, 2013 5:04 PM EST
(CBS) WAYLAND, Mass. - Nathaniel Fujita, the 20-year-old Wayland, Mass. man found guilty on Thursday of murdering his 18-year-old ex-girlfriend, Lauren Astley, was sentenced to life in prison without the possibility of parole, CBS Boston reports.
The jury found him guilty of first degree murder in the stabbing and strangulation of Astley at his home in July 2011. He was also found guilty on several assault and battery charges.
Fujita was formally sentenced Thursday afternoon.
Astley's mother and father each delivered victim impact statements before the sentencing, the station reports.
Mary Dunne, Astley's mother, said she did not know "how [she] will fully live again" without her daughter, who was her only child.
"Never again will I be called 'mom,'" Dunne told the court. "I miss her voice desperately."
Dunne also noted that she will never have the opportunity to attend her daughter's wedding, celebrate her birthdays, or have grandchildren.
Malcolm Astley, Lauren's father, suggested Fujita use what skills he has to help others while spending the rest of his life in prison and that it would be a "notable gift of atonement in Lauren's memory."
When the guilty verdict was read, Dunne broke down in tears and hugged the prosecutor, Lisa McGovern. Fujita's parents reportedly broke down in tears and hugged Astley's father before they left the courtroom.
Fujita showed no emotion as the statements and sentence were read. He was led out of the courtroom in handcuffs.