Investigators have filed a new warrant against a man who was arrested last month.
Now, investigators want access to the YouTube channel where many of the calls were later posted by the man who went by the name Kevin Burbank.
Oklahoma City police said William Aiken, under the name Kevin Burbank, made harassing calls and threatened to kill some of those people.
He called himself a "phone terrorist" for making dozens of threatening calls to people in the metro and across the country.
Norman police had also been looking for Aiken for similar threatening calls. Aiken's YouTube channel has since been taken down, but it was once filled with recordings.
Police said Aiken's harassment on several victims was severe enough that some moved to get away from him.
But for others it put a strain on their marriage.
“It started out with my husband and him calling and harassing my husband and was going to come to our house and telling my husband that we were having an affair,” Debbie Preble, one of many victims heard on Aiken’s YouTube channel.
Police call Aiken persistent and relentless to his victims-- two reasons why he's charged with multiple stalking charges.
Police believe having access to Aiken's YouTube channel may lead police to other victims.