Mrs Aguiar said she had found her daughter outside, where paramedics were tending to her injuries.
“My happy, loving, innocent little girl [was] hurt by a monster,” she said.
Alice was taken to Southport hospital where, after 13 hours, Mr and Mrs Aguiar were told she had not survived her wounds.
“We just hope that she couldn’t feel any pain and that she wasn’t scared,” Mrs Aguiar wrote.
“This haunts us both. We live with this thought most days now.”
Jenni Stancombe, 37, told the inquiry her daughter Elsie was “our joy, our pride, our everything”, adding: “She just radiated warmth and love to everyone around her.”
She told the inquiry her daughter’s death could not be categorised simply as “knife crime”.
“The issue runs much deeper than the weapon that was used,” she said.
“It’s about the root causes, the drive, the intent, and the series of failures that allowed it to happen.”