The jury in the first Twin Peaks trial of Dallas Bandido Jake Carrizal sent a note to the judge shortly before 9:30 p.m. Thursday, saying they were deadlocked.
One of the jurors also admitted to having a personal experience with the Cossacks.
"We are deadlocked on all three accounts. Mr. P indicated that he had person experience with the Cossacks and that his experience will not change because of it," the jury said according to the note they sent to the judge, which was then read aloud.
After reading the note, Judge Matt Johnson then instructed the jurors to continue deliberating until they reached a verdict.
"You are instructed to continue you deliberations," Johnson said.
Neither prosecutors nor the defense objected to the judge's instruction.
Around 10:30 p.m., the jurors sent another note. Lawyers from both sides went back into the judge's chambers briefly, and when they came out, the judge read the other note.
"We believe we need to sleep on it. Can we text loved ones that we are okay? Can we make arrangements for fresh clothes and medicine?" the note said.
The judge said the 12 jurors and two alternates -- who had been kept in a separate room -- would be sequestered at a local hotel for the night and allowed to call one family member each in the presence of a bailiff.
Judge Johnson instructed the jury to return at 9 a.m. Friday to continue deliberations.
Carrizal faces charges of engaging in organized criminal activity with an underlying offense of murder, engaging in organized criminal activity with an underlying offense of aggravated assault, and a charge of directing the activities of a criminal street gang for his alleged involvement in the shootout.
Nine people were killed in the 2015 shootout at the Twin Peaks restaurant in Waco, Texas.
The jury deliberated for roughly nine hours before admitting it could not agree on a verdict on any of the counts.