DENVER -- The metro area's "50 Most Wanted" fugitives are suspected of crimes ranging from murder to rape and robbery to identity theft.

"Many of them are very experienced, hardened criminals who are difficult to track down," said Lt. Tony Lopez, of the Denver Police Department.

But every year, Denver police and officers from surrounding law enforcement agencies join forces in a concentrated effort to track down and arrest the fugitives.

They arrested a total of 30 fugitives Sunday. Among that group were four of the "50 Most Wanted."

Freddie Lazzo was No. 33 on the list, wanted for sexual assault on a child.

"Number 33 was an excellent capture," Lopez said. "We had information that in addition to sex assault on a 10-year-old victim, he was out on social networking sites tying to meet other females."

Police found Lazzo hiding in an ex-girlfriend's bedroom.

His arrest was good news for neighborhood parents.

Mireya Lemus has three children. When asked if she was glad to see the fugitive off the streets, she replied, "Oh yes. So glad. Happy."

Police also captured the number 10 most wanted, Shannon Spicer.

"We found him hiding in a bathroom," Lopez told 7NEWS. "He was wanted for parole violation."

Lopez said tracking down and successfully arresting a "Most Wanted" fugitive "feels like we're holding the winning lotto ticket."

He said, "From 27 years of doing law enforcement, that's a great feeling, knowing that we crossed the finish line. We hit the ball out of the park. We caught the bad guy."

Lopez said the concentrated effort in rounding up the fugitives will continue through the rest of the week.

But he said police won't let up after that.

"We would like to stress to the public that this is more like a marathon for us and not a foot race," Lopez said. "We'll continue to follow up on investigative leads and tips throughout the entire year."

The lieutenant said, "The public serves as our eyes and ears in the community. Without the help of the public, we wouldn't be able to locate and apprehend these people."