By NBC News
February 11, 2015

Behind barricades and 24-hour-a-day security, 12 men and women in the small town of Stephenville, Texas, on Wednesday will begin hearing the murder case against the ex-Marine who shot and killed Chris Kyle, the Hollywood-certified hero of the box-office smash American Sniper.

Eddie Ray Routh, 27, has already admitted that he killed Kyle and a friend, Chad Littlefield, two years and nine days ago at a gun range. But what the jurors will consider is whether he committed capital murder or whether he’s not guilty by reason of insanity.

Here’s a guide to what will be one of the most closely watched trials of the year…

Read the rest of the story from our partners at NBC News

Contact us at editors@time.com.

SPONSORED FINANCIAL CONTENT

Read More From TIME

EDIT POST