AUGUSTA (WGME) -- A teenager who fatally stabbed her parents and pet dog has been sentenced to 40 years in prison.
Andrea Balcer pleaded guilty under an agreement that capped her sentence, but after hearing the victim impact statements and arguments from the prosecution and the defense, the judge sentenced Balcer to 40 years in prison.
Balcer was 17 at the time of the stabbings.
The teenager stabbed and killed her parents, Alice and Tony Balcer, and also killed the family chihuahua because it kept barking.
It happened on Halloween two years ago inside the Balcer's home in Winthrop.
After the grisly murders, the teen called 911 and told a police dispatcher that she "snapped.''
The lengthy recording of that 911 call was played in court Tuesday prior to sentencing.
Balcer was callous as she talked about killing her parents and even laughed about it a few times.
When questioned, she told police she didn't know why she did it.
Balcer later claimed her parents abused her, and that they did not support her transition from Andrew to Andrea, but in their victim impact statement, family and friends say none of the outrageous and self-serving claims Balcer is making are true.
They say Alice and Tony Balcer were kind, caring and loving.
Several of them called Balcer evil, a sociopath devoid of all empathy and remorse, a monster who deserves the maximum sentence.
Christopher Balcer was home that night and ran to the basement to hide.
He says his brother twice asked him if he wanted to die, and then let him run from the house.