The One Direction singer died in Argentina on Oct. 16 after falling from a third-floor balcony of a hotel.
If found guilty, Martin, Grassi, and Nores could face 1-5 years in prison.
Reps for Judge Laura Bruniard’s office have not yet responded toEntertainment Weekly’srequest for comment.

Liam Payne.Credit:Mike Marsland/WireImage
The suspects were not named at that time.
“In time, and when everyone is able to, there will be more to say.
The statement continued, “The memories we shared with him will be treasured forever.

Liam Payne.Mike Marsland/WireImage
We will miss him terribly.
We love you Liam.
Payne is survived by his 7-year-old son Bear, whom he shares with ex Cheryl Cole.

Liam Payne.David M. Benett/Dave Benett/Getty