It happened at the Arborwood Condos in Lindenwold.
The photo shows the man in a red sweatshirt with his hand at his face.
A resident of the unit snapped that picture.
She apparently did not know the man, but others including the woman's boyfriend knew him from Honduras and had invited him to the party.
Police say at some point that morning, the man in red sexually assaulted the woman who took the photo.
Investigators are trying to identify and question the man.
Contact Lindenwold police if you have any information.
You can call 856-784-7566 ext421 or email firstname.lastname@example.org.
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