Florida school shooting: What we know and what we don’t know

What we know

• At least 17 people are dead after a shooting at Marjory Stoneman Douglas High School in Parkland, Florida, according to Broward County Sheriff Scott Israel.
• The suspect is a former student who had been expelled for disciplinary reasons, Israel said.
• The suspect was identified as Nicolas Cruz, according to a U.S. official briefed on the investigation.
• The suspect is 19 years old, born in September 1998, Israel said.
• He is in custody.
• The suspect had at least one AR-15 rifle and “countless magazines.”
• Israel said the investigation is ongoing and authorities asked students to report any information they see on social media that could be relevant.
• The shooting started outside the building, where two of the victims were killed, and then moved inside.
• Two of the victims died at the hospital.
• 17 victims in total were taken to two hospitals in the Broward County health system, according to Dr. Evan Boyar.
• Three victims remain in critical condition and three are in stable condition.
• The suspect was taken to the hospital and released back to police custody.
• Parkland is about 45 miles north of Miami.
• The school is one of Florida’s largest in the county with just over 3,100 students in the 2016-2017 academic year, according to the National Center for Education Statistics.

What we don’t know

• When the suspect was enrolled at Marjory Stoneman Douglas High School.
• Where the suspect attended school after being expelled.
• Where the suspect lived.
• The identities of those killed and whether they were all students.
• How the suspect entered the building.