He was the only one who police arrested and charged out of three young men who were there and present at the beating of Charles Silva, a 77-year-old Vietnam veteran who lived and worked in Chesapeake.
Both sides presented their opening statements on Monday. Two witnesses were also called.
For the first time, a year after his death, a jury saw pictures of the veteran just hours after police say he was beaten by three young men on ATVs.
He suffered a bruised ear and jaw, an injured rib, and a cut on his head.
Now one of the men is facing a first-degree murder charge.
Prosecutors say Langreder was responsible for the final blow to the Vietnam vet after a dispute over trespassing on property surrounding the Chesapeake Executive Airport.
Silva slipped into a coma after being taken to the hospital on September 27th of last year and died less than a month later.
Defense lawyers and the families are now asking why only one person has been arrested.
Prosecutors believe they have a solid case against Langreder right now.
According to defense attorneys, Langreder is expected to take the stand. The trial is expected to go through the rest of this week.