Darwin Martinez Torres, 22, of Sterling, Va. (Fairfax County Police Department via AP)

Fairfax County police say they have found no “credible information” that the accused killer of a Muslim teenager has gang affiliations.

The announcement came one day after The Washington Post reported that a woman said the suspect, Darwin Martinez Torres, 22, was a member of the MS-13 gang and that he had sexually assaulted and beaten her one week before allegedly killing 17-year-old Nabra Hassanen.

The woman made the claim June 12 after showing up at a Loudoun County hospital emergency room, according to two people familiar with her report.

The woman said the attacks occurred in the presence of a 4-year-old, which prompted hospital officials to call Loudoun County’s Child Protective Services. The agency filed a report with the Loudoun sheriff’s office. The woman did not want to pursue charges, so no further action was taken.

Hassanen was killed June 18 after she and a group of other teens allegedly encountered Martinez Torres while walking back to a Sterling-area mosque after a late-night meal.