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“They came prepared,” San Bernardino police Chief Jarrod Burguan said Wednesday of the shooters in the deadly rampage at the Inland Regional Center.

In a news conference Thursday morning, Burguan laid out what investigators have discovered thus far at multiple crime scenes: the mass shooting site at the center; the location of the end of the pursuit that led to a fatal police shootout with the suspects; and the Redlands home rented by shooters Syed Rizwan Farook and Tashfeen Malik.

“There appears to be a degree of planning that went into this,” Burguan said. “Nobody just gets upset at a party, goes home and puts together that kind of an elaborate scheme or plan.”

“Clearly, they were equipped and they could have continued to do another attack,” Burguan added. “We intercepted them before that happened, obviously.”

At shooting scene, Inland Regional Center:

  • 14 victims killed
  • 21 victims injured
  • 2 alleged shooters dead
  • 300 officers from local, state and federal agencies responded to scene, approximately
  • 65 to 75 rounds fired by shooters at victims
  • 3 pipe bombs attached together and to remote-controlled car found in bag at scene
  • 4 high-capacity .223 rifle magazines dropped by shooters at scene

At site of shootout, 1700 block of East San Bernardino Avenue:

  • 7 police agencies involved in response to pursuit, shootout
  • 23 officers fired weapons at suspects
  • 380 rounds fired at suspects by officers, approximately
  • 76 rifle rounds fired by suspects at officers
  • 1,400+ .223-caliber rounds on suspects’ bodies and in SUV
  • 200+ 9 mm rounds on suspects’ bodies
  • 2 officers injured: San Bernardino police officer with gunshot wound to his leg; deputy with cuts to his leg

At Redlands home, 53 N. Center St.

  • 12 pipe bomb-type devices found in the house or garage
  • Hundreds of tools that could be used to construct pipe bombs or IEDs
  • 2,000 9 mm rounds
  • 2,500+ .223 rounds
  • Several hundred .22 long-rifle rounds

Burguan cautioned that numbers he released Thursday could change as the investigation continues.

FBI Los Angeles Field Office chief David Bowdich said some of the evidence will be flown back to Washington on Thursday.