World Literature

Lacey Terrell/HBOIt's all going to make sense now.Warning: spoilers ahead if you aren’t caught up on the season

The thing about the police procedural is you have to have a grasp on a lot of names and events to really follow the plot. Season 2 of “True Detective” has both in mass quantities.

So leading up to the season finale on Sunday, here are some major points from the show you should be familiar with.

1. Here’s the deal about those blue diamonds.

HBOBlue diamonds were found in murdered city manager Ben Caspere's safe deposit box in episode 3. In episode 6, Woodrugh looks into the diamonds and learns they were robbed from a jewelry store during the 1992 LA riots, with the mom and pop owners murdered. As the store was looted soon after the robbery, the diamonds are untraceable.

Woodrugh has also found that Lt. Kevin Burris...

HBOand Detective Teague Dixon...

HBOwere working under Vinci Police Chief Holloway...

HBOat the time of the riots and the jewelry store was in their district. Caspere also worked in the same department. That leads Woodrugh (Taylor Kitsch), Velcoro (Colin Farrell), and Bezzeridies (Rachel McAdams) to conclude that the officers were all working together. They stole the diamonds and Caspere helped move them.

The money they got for them went to Vinci mayor Austin Chessani...

HBOwhich then led to them being the movers and shakers of one of the most corrupt cities in LA county.

2. Why this picture is so important.

HBOThese are the kids that were orphaned due to their parents being killed in the diamond heist by the rogue cops during the ’92 riots. Velcoro and Bezzeridies believe they met one of them. They think Erica, who worked in Caspere's office, may in fact really be Laura, one of the orphaned kids. They are currently trying to track her down.

3. Why Ben Caspere really died.

HBOCaspere holding onto those diamonds turned out to likely be what got him killed. Dixon was checking up on where they could be long before Woodrugh started. Caspere's house was probably tossed by Burris or Dixon looking for them. Then there’s the Hungarian prostitute, Tasha, who was taking photos of Caspere at the high class sex parties, like the one Bezzeridies infiltrated in episode 6, in the hopes to blackmail him. She was tortured and killed in a cabin in the woods upstate.

HBOThe same was likely done to Caspere by the hands of Burris or Dixon when he didn’t give up the diamonds. The final piece of evidence for a 23-year-old double murder. Though Bezzeridies is curious why they would kill Caspere when that’s what launched the investigation in the first place. Hopefully that will be answered in the finale.

4. What we now know about that insane shootout.

HBOWe were led to believe that the shootout that occurred at the end of episode 4, in which a pimp named Ledo Amarilla...