Florida school shooting suspect Nikolas Cruz was formally charged with 17 counts of first-degree murder, which could mean a death sentence if he is convicted.
The indictment returned by a grand jury in Fort Lauderdale also charges the 19-year-old with 17 counts of attempted murder for the Valentine's Day massacre at Marjory Stoneman Douglas High School in Parkland in which 17 people died and more than a dozen others were wounded.
Cruz's public defender has said he will plead guilty if prosecutors take the death penalty off the table, which would mean a life prison sentence.
The Broward County state attorney has not announced a decision on the death penalty.
James and Kimberly Snead, the couple who gave Cruz a home after his mother died late last year, testified before the grand jury.
Both James Snead and the couple's attorney, Jim Lewis, wore silver "17" pins to honor the victims of the shooting.
The couple is "trying to do the right thing" and is mourning along with the rest of the Parkland community, Lewis said.
"We'll let justice take its course at this point," Lewis said. "They still don't know what happened, why this happened. They don't have any answers. They feel very badly for everybody."
Cruz told investigators he took an AR-15 rifle to Marjory Stoneman Douglas High School in Parkland on Valentine's Day and started shooting into classrooms.
Jail records released by the Broward Sheriff's Office show Cruz was being held in solitary confinement. Officers described Cruz as being cooperative but avoiding eye contact.
The report said Cruz "often sits with a blank stare," appeared to laugh and exhibited "awkward" behavior during and after a visit with an attorney and had one "family visit."
Officers said Cruz also requested a Bible to read in his single-person cell in the infirmary.