The trial was held in 2001.
- Prosecutors: U.S. Attorney William Welch called her a "shell of a human being" who deserved to die. Argued that she wanted to attract attention from Perrault due to her calm and collected manner during emergencies.
- Defense Attorneys: They argued that life imprisonment was a harsh enough punishment for a young woman convicted on 'circumstantial evidence'. They argued that the deaths of the veterans were due to natural causes only.
Gilbert's ex-boyfriend, Perrault testified against her- claiming she had told him about intentionally killing one of the patients.Additionally, epinephrine was found in the body tissue of the victims. The patients that died from heart problems had no previous heart issues.
She was found guilty of three counts of first degree murder, one count of second degree murder, and two counts of attempted murder. She was not given the death penalty, although she was eligible since her crime was committed on federal property.
Instead, she was given four continuous life sentences without possibility of parole, as well as 20 years.
"You know I did it. I did it. You wanted to know. I killed those guys." -Kristen Gilbert to Perrault over the phone.