Police: Woman's death in Potomac River accidental

Police believe that the Fairfax woman whose body was found in the Potomac River on Wednesday accidentally fell in the water from a dock on a tributary.

The woman has been identified as 66-year-old Cheryl Ann Alston, Prince William County police said.

Family members had reported Alston missing on Monday, police said. She had last been seen on Saturday night in the area of Marina Way in Occoquan, where she docked a boat on the Occoquan River.

On Tuesday, authorities searched the water near the dock but did not find Alston. The next day, a U.S. Customs and Border Protection helicopter located Alston in water off of Belmont Bay.

Man pleads guilty in Dupont Circle sexual assaults

A D.C. man pleaded guilty Thursday to a series of sexual assaults on women near Dupont Circle last summer, U.S. Attorneys announced.

Oscar Mauricio Cornejo-Pena, 31, pleaded guilty to four counts of misdemeanor sexual abuse, and faces a maximum sentence of nearly two years in prison.

In four incidents last August, Cornejo-Pena rode his bicycle past the women and grabbed them in the buttocks before riding away, according to prosecutors. The attacks all occurred in the daylight hours, never later than 6:37 p.m.

Cornejo-Pena is scheduled to be sentenced on Nov. 14.

G.W. police search for suspect in campus thefts

George Washington University police are looking for a Clinton man wanted in connection with several thefts on campus.

University police believe Courtland Thornton, 20, may be working with a younger accomplice in order to enter unlocked academic buildings and the Gelman Library to steal unattended cellphones and laptops, according to a campus alert sent out Thursday.

Thornton is described as a black male, 6 feet tall, weighing 175 pounds with brown eyes, black hair and a shadow beard. He always has a backpack, according to police.

-- Naomi Jagoda and Ben Giles