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When 9-year-old Trinity Love Jones was found dead in a duffel bag, the pink shirt she wore gave a glimpse into her hopes for the future.

Instead of being a princess, like many girls’ shirts proclaim, Trinity’s had bigger ambitions.

“Future Princess Hero,” her shirt read, with the word “princess” crossed out.

That’s one of the few details authorities have released about Trinity’s death. Many questions remain. Here’s what we know and don’t know about the young girl’s death:

What we know

The girl's body was found in a roll-away black duffel bag, authorities said.
LASD
The girl's body was found in a roll-away black duffel bag, authorities said.

A man has been arrested and a murder charge filed

Emiel Lamar Hunt, 39, was charged Tuesday in the death of Trinity. He is reportedly the boyfriend of Trinity’s mother, the Los Angeles County Sheriff’s Department said.

She was partially stuffed in a duffel bag

Police said Trinity’s head and upper body were protruding from the partially zipped roll-away black duffel bag.

She was publicly identified a week after she was abandoned

Lt. Scott Hoglund of the Los Angeles County Sheriff’s Department said authorities think Trinity was left in light brush by an equestrian trail the evening of March 3. The body was publicly identified as Trinity’s on Sunday.

She wasn’t in the state’s missing persons database

There is no record of Trinity in the California Missing Persons System, the state Department of Justice said.

What we don’t know

The exact manner of Trinity’s death

The Los Angeles County medical examiner’s office said Trinity’s death was a homicide. But the sheriff’s department has put a security hold on the girl’s autopsy report.

Whether she was dead or alive

It’s not clear if Trinity was dead or alive at the time she was abandoned by the trail, authorities said.

What authorities believe led to the killing

Hunt was arrested Tuesday but officials have not released a possible motive.

Why a second person was arrested

Investigators detained another person but the sheriff’s department say how – or whether – they are connected to the case.

CNN’s Jenniver Selva, Sarah Moon and Cheri Mossburg contributed to this report.