Sentencing proceedings began Tuesday in the case of 16-year-old Aiden Fucci, who pleaded guilty last month to first-degree murder in the stabbing death of 13-year-old classmate Tristyn Bailey in Florida 2021. 

The case received national attention after evidence showed Bailey suffered 114 stab wounds on May 9, 2021. Fucci was 14 at the time and charged as an adult.

Judge R. Lee Smith must decide how long to sentence 16-year-old Fucci from 40 years to life in prison. Due to being a juvenile, Fucci’s first-degree guilty plea doesn’t qualify for a possible death sentence. The sentencing hearings are expected to extend into the week with potentially a couple dozen more people called to testify.

Smith previously said he intends to decide on a sentence within a week.

“I’m not going to drag this out any longer than necessary,” he said in February. “I don’t want to go through a sentencing hearing and then say, ‘All right, now I’m going to take three more weeks.”

The first day of the sentencing phase at times felt more like a trial with testimony from sheriff’s officers, crime analysts, a medical examiner and psychologist among others. But multiple photos, videos and interviews provided a broader picture of what happened on Mother’s Day weekend 2021 in the St. Johns County neighborhood where the two lived.

Aiden Fucci listens and observes the proceedings of his sentencing phase on March 21, 2023, in St. Johns County court.

Fucci and Tristyn had been at a friend’s home in their Dubrin Crossing neighborhood and were last seen walking together after 1 a.m. on May 9, 2021, the Sheriff’s Office said. Bailey’s body was found later that day in some nearby woods after a missing-persons report was filed.

Here are five takeaways from Tuesday’s testimony.

What did Aiden Fucci say Tristyn Bailey did before her death?

Deputy Robert Maloney of the St. Johns County Sheriff’s Office was one of the first to interview Fucci when Tristyn was still missing. Fucci confirmed they were hanging out at a mutual friend’s home until leaving together about 1 a.m. and he was home by about 3:30 a.m. But the deputy pointed out that some of Fucci’s timeline didn’t match up.