Republican presidential candidate Donald Trump met Friday with the mother of a 20-year-old student killed in an execution-style murder in Newark nearly 10 years ago.

Shagla Hightower's daughter, Iofemi, was killed along with two friends in a 2007 attack in the school yard of Mount Vernon Elementary School.

The meeting was part of Trump's campaign issue of crimes committed by immigrants who are in the United States illegally. Hightower told Trump that her daughters' killers "should have never been here" and praises Trump for giving her daughter recognition.

She said, "I truly, truly thank you from the bottom of my heart."

Trump has been featuring parents whose children have been killed by people living in the U.S. illegally at his events to try to underscore the risk they pose.

He said Hightower's is "a horrible story, but it's a story a lot of people are going through."

He added that his rival Hillary Clinton "has no clue and doesn't care."