Documents obtained by CNN provide an insight into 19-year-old Nikolas Cruz's life in Broward County Jail where he has been since he confessed to the Valentine's Day rampage that left 17 dead at a high school in Parkland.
In observation reports from February 17th to 24th, officials described his movements and behaviour which ranged from being "calm" and "slow" to "avoids eye contact" and "looks downward with a blank stare".
On February 24th, a deputy noted that Cruz requested to read a Bible after another restless night.
The report goes on to say he: "(Twists) and turns in bunk, does not sleep, stares at wall in deep thought, eyes closed, appears to be resting, not asleep."
However, his lawyer cautioned against reading too deeply into the notes.
"They are snippet observations from corrections officers and are not clinical impressions made by his treating psychologist or psychiatrist at the jail. They don't show a complete picture," chief assistant public defender Gordon Weekes said in a statement.
"They are generated because Mr Cruz has a high-profile case and is on suicide watch."
Stay up to date with the latest news stories from a Christian perspective. Sign up to our daily newsletter and receive more stories like this straight to your inbox every morning.
