Short story about a lady visiting a conference for multiverse versions of herself?

Question

I would appreciate some help finding a story I read on lightspeedmagazine.com whose title I've forgotten.

The details I recall are:

• The lady had a job involving investigation in some form
• There is a pre-party which she skips out on
• Sometime early during the conference a version of herself is murdered
• When she comes across the scene of the crime, she finds another version of herself there, though she appears innocent

Edit: Some extra details

• I read it sometime within the last two years
• It was a single written piece not a pdf piece

Answer 1

This is most likely “And Then There Were (N-One)” by Sarah Pinsker

• The viewpoint character is an insurance claims investigator

• There is a murder

• All characters involved in the murder (victims, investigator, suspects) are alternate timeline versions of the main character

The only difference is that in appeared in Uncanny, issue 15, March/April 2017. You can read it here