The condition of the civilian remained unknown, but Perlich said he had not been transported elsewhere for treatment and was still at the apartment complex. He was taken to a local hospital to be treated.
Police have not released the names of the officer who died or the suspect.
Officer David Sherrard, 37, was shot in the neck around 7 o'clock as Richardson police responded to a disturbance call in the Dallas suburb.
Police soon located the alleged gunman at the apartment complex, and he barricaded himself in an apartment unit, still firing a weapon, apparently at random. About three hours later, Richardson police reported that he had died. This is the first police officer death in Texas this year. Among those who came to pay their respects was a man from Cops4CopsTX.org, in a vehicle decorated with stars and stripes and the slogan, "When a hero dies, an angel rises".
"And may his legacy live on in others' service", Texas Gov. Greg Abbott wrote on Twitter. "Your loss is a loss to all law enforcement and everyone in our great state", the governor said.
Officers went to a nearby apartment where they found a man who had been shot.
"May God rest his soul".
"Please pray for us!"
Other officers were ultimately able to arrest the suspect. Police said he lived at the complex and knew the suspect.