WATCH: A look inside free dog training offered to Detroit pit bull owners

DETROIT – A Detroit dog trainer decided to offer free classes to pit bull owners when a 9-year-old girl was mauled to death over the summer.

MORE: 10 pit bull owners get free classes from Detroit dog trainer

Steve Liggens, the owner of Motor City K-9 Solutions, is providing free four-week training sessions after Emma Hernandez was killed.

Take a look inside one of Liggens’ classes in the video above. Warning: The video may be disturbing to some viewers.