John Walsh and Callahan Walsh dish on their new true crime show

The father and son duo open up about "In Pursuit with John Walsh," and share their mission to track down fugitives and find missing children.
2:52 | 01/15/19

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Transcript for John Walsh and Callahan Walsh dish on their new true crime show
And we are back with John Walsh and his son Callahan to talk about their new show "In pursuit with John Walsh" premieres this Wednesday. This show, of course dedicated to tracking down fugitives. Did you this for 25 years on "America's most wanted." Why come back. I was getting to ready. Callahan and his beautiful wife had a son three months ago and his sister has a daughter and son and was trying to do that grand of father thing. The FBI -- After three months? Last year 2018 was a bad year for America. We had 144 cops killed in the line of duty. We had 307 mass murders. It used to be three people or more. Now it's four people or more. 33,000 gun deaths in four cities, Chicago, Baltimore, new Orleans and Detroit. The clearance rate for homicides is down to 30%. So, it's unacceptable. We are the richest, most powerful country on the planet and the most violent. Callahan, you have real ambitions for the show. Tell us how it will work. We're going after real bad guys this show. I'll be joining my father so he'll be doing the first hall of the show. I actually go on in the second half and go into the field and talking to investigators, law enforcement, usually U.S. Marshals, a great partner of ours whether on the show or at the center where I work, my day job, but really trying to harness the power of the public. We'll profile the guys and put them out there and hope to get some great tips and bring justice to families who haven't gotten it. Let a take a look. Detective has been on the lookout. Ever since this call came into a 911 center. Okay, on Sunday January 11th. Uh-huh. I strangled her. She is dead and she is laying on the living room floor. What's your name, please? I'm getting ready to leave the country. You need to get law enforcement out there to do whatever they do with dead body. So tough to hear. So many cases out there. How do you decide which ones to go after? The choosing of the cases I think is the most difficult. It's heartbreaking. We're turning down about 250 cases a week now. People will -- social media, cops are begging us to do the cases but it's the victims, people will go on social media and say, John, it took 27 years. It took me 27 years to get to solve Adam's case, so we just try to pick the guys we can catch. Some of the tough ones I didn't get on "America's most wanted" but to turn down people is heartbreaking because we are the court of last resort. The focus always on the missing kid. Always. Can't wait to watch. Thanks for coming in. "In pursuit with John wall kobe Bryant" airs Wednesdays on investigation discovery.

This transcript has been automatically generated and may not be 100% accurate.

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