New security video released on Monday by the Rhode Island police showed a person of interest wanted for questioning in the deadly mass shooting that erupted over the weekend on the campus of Brown University.

Investigators are now speaking with a person of interest in the horrific acid attack that shocked Savannah, Mayor Van Johnson says.

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Law enforcement officials have identified the person of interest detained in connection with the Brown University shooting as 24-year-old Benjamin Erickson of Wisconsin, multiple sources told CNN. CNN Chief Law Enforcement and Intelligence Analyst John Miller has more.