A 19-year-old man accused of killing two men while a New Orleans Mardi Gras parade rolled by has pleaded not guilty to two counts of second-degree murder.

Court filings say John Hicks also pleaded not guilty Tuesday to obstruction of justice and illegally carrying a firearm on a parade route.

Hicks remains jailed, with bonds totaling over $2 million.

He's charged in the Feb. 12 shooting deaths of 21-year-old Peter Dabney and 22-year-old Ivan Williams.

Police say they were in a group that got into an argument on St. Charles Avenue with Hicks and his friends. The disagreement turned deadly. Police haven't said what they were arguing about.

Donna Weidenhaft of the Orleans Parish Public Defender's Office is representing Hicks.

He is due back in court on May 11.