Students previously "joked" that Cruz would shoot up the school, a student said.
As Cruz opened fire with an AR-15 rifle, Coach Feis, according to students, jumped in front of the bullets.
Math teacher Jim Gard, who taught Cruz a year ago, told the Miami Herald school administrators warned that Cruz had made threats in the past.
About a month earlier, another gunman killed at least 58 people at a concert in Las Vegas, Nevada.
Inflation rate remains steady at 3%
The Fed is expected to raise rates at least twice this year but aims to keep inflation around 2 percent according to the CPI's. If long-dormant inflation spikes, that means interest rates, which are already on the rise, will go up at an accelerated rate.
"We didn't have any warnings", he said.
The Russian Embassy in the United States expressed shock on Wednesday at the news of a shooting at a high school in Florida that killed 17 people, and said it shared the sorrow of the bereaved friends and relatives.
Cruz apparently left school and moved to North Florida a couple months ago after his mother died.
In the late press conference, Florida Governor Rick Scott, a Republican, said it was an act of "pure evil" but refused to discuss gun controls.
Donald Trump had tweeted earlier Wednesday offering his "prayers and condolences to the families of the victims of the bad Florida shooting".