A Jefferson Parish grand jury returned indictments Thursday in several high-profile cases.

John Spears was indicted on second-degree murder in the shooting death of his supervisor at a Kenner maritime training center in December.

Spears, 51, of Marrero, is accused of walking into Houston Marine in the 2500 block of Williams Boulevard about 3:30 p.m. Dec. 4 and killing Anthony Tardo.

Police said Spears was standing outside the building shortly before the shooting and told a fellow employee who was leaving early, “You’re going to miss all the fun. I’m about to go back inside and shoot everybody.”

After the shooting, investigators said, Spears went outside to his Chrysler 300 sedan, placed his .40-caliber handgun on the roof and waited for police.

Spears is being held in the Jefferson Parish Correctional Center on $750,000 bail. If convicted, he faces a mandatory life sentence.

In a second case, an 18-count indictment was handed up against James Prince, a Girard Playground coach who was arrested in October after he was accused of sexually abusing three boys years ago.

Prince, 44, of Metairie, was indicted on one count of aggravated rape related to a 2003 incident with a boy who was about 9 years old, nine counts of possession of child pornography, four counts of sexual battery and four counts of indecent behavior with a juvenile.

Prince’s bail was set at $1.21 million. Aggravated rape carries a mandatory sentence of life in prison.

Three victims came forward in October and told police Prince had sexually abused them more than 10 years ago. One of them said Prince had videos of him having sex with underage boys.

Finally, two West Bank men were indicted in connection with a December shootout that killed a 15-year-old honor student while she sat inside her aunt’s house in Harvey. The grand jury handed up a six-count indictment against Romalis Levier, 18, and Bryan Smith, 22.

Levier was charged with second-degree murder and attempted second-degree murder in the killing of Shamarie Joseph, who was struck by a bullet that came through a wall Dec. 22.

Levier also was charged with obstruction of justice, conspiracy to obstruct justice, possession of marijuana with intent to distribute and possession of the pain medication tramadol.

Smith was charged with one count of conspiracy to obstruct justice.

Authorities said Levier and Emmett Garrison IV, 17, got into a shootout in the 1600 block of Apache Drive, Garrison with a 9 mm handgun and Levier with a .22-caliber handgun. Garrison was injured in the shooting. Smith was arrested shortly afterward when he was found with Levier trying to destroy evidence, police said.

Judge Michael Mentz, of 24th Judicial District Court in Gretna, granted a request by prosecutors with the Jefferson Parish District Attorney’s Office to increase Levier’s bail to $1.53 million. He set Smith’s bail at $250,000.

An attachment was issued for the arrest of Smith, who had bonded out after his initial arrest.

All the cases will be tried in 24th Judicial District Court.

Follow Chad Calder on Twitter, @Chad_Calder.