Officer Hilal (HEE-lahl) Williams says 19-year-old Malcolm Hall was booked Saturday with four counts of attempted first-degree murder.
An online jail roster indicates that his bond had not been set Sunday.
Two Marrero men—22-year-old Brandon Brown and 23-year-old Deron Bridgewater—turned themselves in earlier and were booked with the same charges. Their bonds are set at $1 million: $250,000 on each count.
It was not clear whether any of them has an attorney.
The shooting injured four people, one seriously, during the run-up to Mardi Gras. Police have not released the victims' names.