Conspiracy theorist Alex Jones has been ordered to pay $4.1m in damages after falsely claiming the 2012 Sandy Hook school shooting was a hoax.
The parents of a victim have sought at least $150m in the Texas defamation trial against the Infowars founder.
They said they endured harassment and emotional distress because of the right-wing host’s misinformation.
Twenty children and six adults were shot dead at Sandy Hook Elementary School in Connecticut.
The jury in the city of Austin decided compensatory damages on Thursday, and must still determine any punitive damages.
Jones – who was not in court when the outcome was announced – has repeatedly argued that the shooting was a hoax organised by the government in order to strip Americans of gun ownership rights, and that the parents of the dead children were “crisis actors”.