Updated

The sister of a woman charged with her newlywed husband in the murder of a man they allegedly lured through Craigslist says her sister is making up the claim that she killed more than 20 people.

The Daily Item of Sunbury (http://bit.ly/1mHP3Qo ) reported Tuesday that Miranda Barbour's sister, Ashley Dean, called Barbour a "master at lying" who is drawing on the escapades of television serial killer "Dexter."

The 19-year-old Barbour is in Northumberland County court Tuesday for a pretrial hearing.

Barbour made the claim to a Daily Item reporter after being charged with killing a man she allegedly lured through a Craigslist ad offering companionship for money. She has pleaded not guilty.

Investigators say they've found no evidence to substantiate her claims.

In the TV show "Dexter," a police blood-spatter analyst secretly killed proven killers.

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Information from: The Daily Item, http://www.dailyitem.com