Sister of Marathon Bombing Suspect Due in Court

A sister of Boston Marathon bombing suspect Dzhokhar Tsarnaev was due in a Boston court in a case in which she's accused of misleading a police detective in a counterfeiting investigation.

Ailina Tsarnaeva, 24, was scheduled to be in South Boston Municipal Court on Tuesday.

Prosecutors say she failed to cooperate in a 2010 counterfeiting investigation. They said she picked up someone who passed a counterfeit bill at a restaurant and "lied about certain salient facts during the investigation."

Tsarnaeva, of North Bergen, New Jersey, is facing separate charges in New York, where she is accused of threatening to "put a bomb" on a perceived romantic rival.

Federal prosecutors say Dzhokhar Tsarnaev and his older brother, Tamerlan, planted two bombs near the 2013 marathon finish line, killing three people and injuring more than 260. Tamerlan Tsarnaev later was killed in a shootout with police. Dzhokhar Tsarnaev has pleaded not guilty and is awaiting trial in January.

According to a police report in the counterfeiting case, police were investigating the passing of a counterfeit bill by a group of people eating at an Applebee's restaurant in the South Bay Center, a mall in Boston's Dorchester neighborhood, on April 16, 2010. A server saw the group leaving and wrote down their license plate number.

Police traced the car to Tsarnaeva at her family's Cambridge home. When questioned, Tsarnaeva said she did not know the names of the people she picked up from the restaurant, according to the police report. She also told police that she had not lied but "did not want to be a snitch," according to the report.