House Homeland Security Chairman: 'Disturbing Flags' in Orlando Shooting Case

House will hold hearings on whether FBI did all it could to prevent shooting

"There are some disturbing flags going up in this case that we're going to take a close look at," the Texas Republican said on ABC's "This Week," adding, "The FBI tells me they didn't have predication to detain or arrest" the alleged shooter, Omar Mateen, in its prior investigations of him.

McCaul also warned that there will likely be future attacks.

“This will not be the last attack in the United States. I'm certain that there is another individual like Mateen out there who is radicalizing as we speak,” he said.

McCaul did not personally blame the president, but did criticize his foreign policy. “I do think the foreign policy that's been conducted over the last three-and-a-half years since we've known about ISIS has led to this.”