DNA test revealed three teenagers who had raped a Haitian immigrant and then forced her to have sex with her son.
DNA from suspects Tommy Lee Poindexter and Nathan Walker Jr. was found on the woman's dress, according to an analysis by the Palm Beach County Crime Laboratory, released in documents Thursday. DNA from Avion Lawson also was found on a condom left at the scene, according to the documents.
Poindexter, 18, Walker, 17, and Lawson, 14, face charges including sexual battery, kidnapping and burglary. A fourth suspect, Jakaris Taylor, 16, has been previously linked to the crime through fingerprints, police said.
All face life sentences if convicted.
The woman told police that as many as 10 masked teens accosted her and her 12-year-old son in their apartment on June 18. The teens are accused of raping and sodomizing the mother, forcing mother and son to have sex with each other and beating both of them.
The suspects then doused them with cleaning solutions in an attempt to destroy evidence, police said.
Attorneys for Lawson, Walker and Taylor declined to comment on Friday. Poindexter's attorney did not immediately respond to a telephone message and e-mail.