D.C. police say they have released four people who were detained at the same time that the suspect in the slayings of a wealthy family was taken into custody.

Police did not identify the four people or say how long they were detained. Thirty-four-year-old Daron Wint is the only person who's been charged in the slayings of 46-year-old Savvas Savopoulos; his wife, 47-year-old Amy Savopoulos; their 10-year-old son, Philip Savopoulos; and a housekeeper, Veralicia Figueroa.

Police have said in charging documents that they believe Wint had help from others holding the Savopouloses captive inside their northwest Washington mansion for at least 18 hours. But no other suspects have been identified.

Wint was arrested Thursday night in Washington, a week after the slayings. He had previously worked for Savvas Savopoulos' company.