Kelly Lawler | USA TODAY

USA TODAY

Spoiler alert! This story contains details from "Making a Murderer Part 2," which debuted on Netflix on Friday, Oct. 19.

"Making a Murderer" didn't end after it dropped on Netflix in 2015.

"Part 2" of the explosive docuseries arrived on the streaming service Friday, unloading a host of new information about Steven Avery and Brendan Dassey's cases, after both men were convicted of the murder of Teresa Halbach in 2007.

The new episodes of the documentary spend a large amount of time with Steven's attorney Kathleen Zellner, who conducts an exhaustive investigation into the evidence against her client, and the murder itself.

Zellner finds a wealth of new evidence she believes should help void Steven's conviction. For those who didn't closely follow the case, the following are the biggest revelations from the documentary in Avery's case (the portion of the series that focuses on Brendan is less about evidence and more about the legitimacy of his confession).

Netflix

Inconsistencies in forensic evidence

Zellner used vast resources to go over nearly every piece of forensic evidence against Steven in excruciating detail, with a host of new experts. She conducts tests that suggest the blood spatter in Halbach's car did not get there the way the prosecution said. She says that Steven's blood was planted there – not from the vial from his rape case, as his original defense lawyers argued, but from splattered blood in his trailer bathroom. She questions the ballistics tests from the bullet fragments found in Steven's garage. She also identifies bone fragments found on Avery property that were not highlighted at the trial.

New witnesses

A man from Manitowoc County contacted Zellner with information about the case, claiming that he saw Halbach's car off the Avery property during the search for her. He also says that he ran into Andrew Colburn at a gas station and informed him of this. Colburn was one of the police officers whom Avery's original trial lawyers accused of planting evidence. This same witness says he knew Brendan's stepfather Scott Tadych and texted him after watching "Making a Murderer," hoping Scott would put him in touch with Brendan's attorneys. Scott never acted on it.

Coroner Debra Kakatsch also is interviewed in the final episode, and claims she was prevented from investigating the Halbach case by Manitowoc County officials, supposedly because of Steven's lawsuit against the county. She was prevented from testifying at Steven's trial to explain this, and later left her position.

Netflix

New suspects

Zellner floats other potential suspects in the case, a few of whom she exonerates. The most compelling new targets are members of the Avery family: Bobby Dassey and Scott Tadych.

Zellner recounts items she found on Bobby's computer, including images and searches for violent pornography, child pornography, bestiality and other violence against women. The witness who says he saw Teresa's car after she went missing places it near Tadych's trailer. The documentary then shows archival footage from the trial, to demonstrate that Tadych and Bobby's alibis are tied only to each other.

After Zellner's theory about Bobby and Scott is revealed in news coverage, she uses statements Scott made to Steven on the phone and posts Barbara Tadych (Brandon's mother and Scott's wife) made on Facebook to add to her case. Those statements suggest that the Tadychs knew information that was withheld, and that Bobby lied during Avery's trial. Bobby is later re-interviewed by law enforcement, but denies he did it.

But for now, the cases have stalled

Despite all the efforts made by both Brendan and Steven's attorneys, both cases have stalled in their post-conviction efforts. In June of this year, the Supreme Court denied to hear an appeal of Brendan's case, effectively upholding his conviction.