MINNEAPOLIS (WCCO) – Mary Johnson’s son was murdered 20 years ago. She has since forgiven the man who killed him, but still feels compelled to work to stop the killing.

“Our youth should not be able to walk out of their door, and walk down the block and get a gun,” Johnson said.

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The summit included police officers, pastors and citizens – working to end gun violence.

Among the attendees was Leroy Duncan of Protect Minnesota.

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“There are about 350 people who die every year because of gun violence in the United States,” Duncan said.

But Mitch Berg with Gun Owners Civil Rights Alliance says his group was told not to attend the summit.

“It’s not a conversation, it’s a monologue,” Berg said.

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Duncan denies that allegation.