Phil Chalmers is a leading expert on what causes teen to kill. He wrote a book titled: "Why Teens Kill."
In order to better understand the mind of a killer, he has interviewed over 200 teen killers and school shooters, along with numerous serial killers, mass murderers, and sexual predators.
The Saginaw Sheriff's Department brought Chalmers to Saginaw Tuesday to speak to students about the dangers of bullying and how to deal with it.
"The truth is if they don't start talking about what they see, they're going to get hurt a lot of kids have been killed because someone is being bullied and no one is saying anything."
Chalmers travels across the country to train law enforcement and school faculty on how to spot behavior that may lead to teen violence and even murder.
"The top three of why kids kill are they come from bad homes… bullied at school… they're obsessed with violent media or they are suicidal," Chalmers said.
The approach needs to be unorthodox in order to reach a younger demographic.
"We try to give them truth…I bring rappers with me, musicians and we try to put on a good show for them to get their attention," Chalmers said.
Every day, more than 160,000 students stay home because of bullying, according to the Center for Disease Control's web site.
Students from several local high schools were on hand for the event at the Dow Event Center.
"Everything stood out to me… It made me feel more self conscious," said Katelynn Jacob, a ninth-grader at Arthur High School in Saginaw.
"It made me feel like, I am who I am so I should be proud of it," Katelynn added.
"The information they presented was great," said Christian Garrett, who is also a freshman at Arthur High School.
Chalmers said he is starting to see a difference from his efforts.
"We are trying to give them another way."