Lance Storz, 49, appeared in Floyd County court Friday morning after the charges against him were explained. A judge set his bond at $10 million in cash.
It is unclear whether Storz, who is seen via video with multiple bruises and wounds to his face, has a lawyer. The judge said he would appoint a public defender to represent him at future hearings.
Floyd County Sheriff John Hunt told reporters after the hearing that on Thursday evening Allen was serving a warrant related to a domestic violence incident in the city when Storz opened fire.
“They arrived… faced pure hell. They had no chance,” the sheriff said, adding that the deputy had not even contacted the suspected shooter when the shooting began.
Hunt said, the shooter had a plan and “that plan was executed almost accurately.” The sheriff said it took several hours to figure out where the gunman was firing.
“The (suspect) was a sheer terrorist… He was just a terrorist on a mission,” the sheriff said.
The Sheriff’s Office has identified the slain officers as Floyd County Deputy William Petrie and Prestonsburg Police Captain Ralph Fraser. On Friday, the Prestonsburg Police Department said officer and dog handler Jacob R. Chaffins was also killed.
“You have devoted your little time on this earth to serving the citizens of Prestonsburg and the Commonwealth as an EMT, firefighter and police officer. You have dedicated yourself to the security of our nation as a brave soldier ,” the department wrote.
A preliminary investigation by the Kentucky State Police also determined that a police dog struck by stray bullets died as a result of those injuries.
The fourth officer was treated and released. The state police said the civilian is still hospitalised.
Floyd County Attorney Keith Bartley said Friday morning: “These are humans. These are people with children, spouses, mothers and fathers, their world will never be the same.”
The sheriff said a deputy who came under a running patrol vehicle ended up with carbon monoxide poisoning.
“Other officers were injured in other ways, either trying to get in or out of position.” Hunt said.
Officials said after about six hours of active shooting, the deputy was finally able to negotiate with Storz with the help of his family.
Bartley said there are “substantially more” charges to come. The initial “charges were originally made in the middle of a war zone.”
The next hearing of Storz, who is in Pike County Jail, is scheduled for July 11 at 1:30 p.m. in court.
Officials said Storz used multiple firearms in attacks on law enforcement.
“Floyd County and our brave first responders suffered a tragic loss last night. I want to ask all of Kentucky to join us in praying for this community. This is a difficult morning for our Commonwealth,” Kentucky Gov. Andy Beshear said in a Twitter post Friday.
CNN’s Andy Babineau, Michelle Watson and Sharif Paget contributed to this report.