Kate Steinle's brother said on "The O'Reilly Factor" tonight that a federal law such as "Kate's Law" is necessary to deal with criminal illegal immigrants.

Reacting to today's Senate Judiciary Committee hearing on sanctuary city policies, Brad Steinle said that illegal aliens who have committed felonies and go on to commit aggravated or violent crimes should be detained or deported.

"There's no question about it," Steinle said. "It's black and white. There's no reason these people should be on the streets."

Kate's father, Jim Steinle, said there are no words to express his pain and loss following his daughter's tragic death.

"If we can get this 'Kate's Law' passed ... if we save one son, one daughter, one mother, one father, one sister, one brother, then Kate's death is not all in vain."

Watch the "O'Reilly Factor" interview above.

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