WARNING: The following article contains major spoilers for Hal Jordan and The Green Lantern Corps #50 by Robert Venditti, Rafa Sandoval, Jordi Tarragona, Tomeu Morey and Dave Sharpe, on sale now.
Hal Jordan's career has been a rollercoaster of emotions, filled with dizzying ups and nauseating downs. In Hal Jordan and the Green Lantern Corps, all of the hero's most painful memories are dredged up yet again, this time thanks to the Darkstars, a lethal police force the Corps has been battling for the last several months.
Wrestling with desire to make use of deadly force in order to defeat the Corps' enemies once and for all, Hal found himself recruiting villains like Zod and Hector Hammond, as well as anti-heroes like Arkillo and Orion, to take down the Darkstars threat as well as their leaders, the Controllers. On the cusp of finally achieving (non-lethal) success, Hal found himself battling Tomar-Tu, a former colleague turned Darkstar, who sees the Lanterns as ineffective, and wants to end their reign.
As they literally fight for the very soul of the cosmos, Hal ends up facing his biggest failure in life, a moment that has dire repercussions once again.
In Issue #50, the series finale, Kyle Rayner, John Stewart, Guy Gardner (himself an ex-Darkstar) and the entire resistance are taking on the Darkstars, even though they're hopelessly outnumbered. This is a distraction, though, allowing Hal and Hector to sneak in to shut down the Controllers, the brains of the operation. However, Tomar-Tu crashes the party, and the ensuing brawl with Hal is one for the ages.
During their scrap, Tomar-Tu keeps insisting to Hal that justice needs to be deadly to decrease and discourage the number of villains running amok. He no longer believes in second chances. In a last-gasp move, Hal overloads the Controllers' mainframe with his own willpower, allowing all the Darkstars to be restrained. With the Controllers down, the resistance quickly starts rounding up the de-powered enemies.
Hal can't help but feel for Tomar-Tu though, as he fell from grace and turned to the Darkstars to exact revenge for his father, Tomar-Re (one of the Green Lantern's most revered soldiers who was murdered in the line of duty). In one final effort to get through to the son of his fallen comrade Hal opens up, reminding him that he too was a killer when he was possessed by Parallax. The senior Lantern wants Tomar-Tu to become a new man, and as he pleads his case, we clearly see Hal reliving the anguish he experienced as the avatar of fear.
Zod interrupts their intimate moment, hellbent on killing Tomar-Tu as he holds his father responsible for failing to protect Krypton when it blew up. Hal stands up for the fallen warrior, telling Zod he won't be paying for Tomar-Re's sins. Hal argues for forgiveness, not capital punishment, and while soaking in Hal's speech about how he nearly destroyed the galaxy but managed to redeem himself, Tomar-Tu -- struggling to live with the bloodshed he just caused and feeling like he became something similar to Parallax -- takes a blaster and shoots himself in the chest.
He reminds Hal that he just wants to die a good man, and by committing suicide he's ridding the galaxy of one last criminal. He doesn't believe he has the resolve Hal does, and he dies in Hal's hands. Zod leaves, feeling satisfied, a move that only amplifies the pain of the moment. Hal basically saw himself in Tomar-Tu, one man trying to change the universe for the greater good. More so, he remembers how he felt like taking his own life when he realized the destruction caused by his crusade, years ago.
After the Darkstars are jailed, Hal honors Tomar-Tu before flying back to Earth, seeking solace with Carol Ferris. It's a tender moment, seeing the pair kiss and seemingly mend fences that have been shattered for years, closing out the series with a reminder of the toll which war takes on superheroes, and how some never recover.