The first officer fired a shotgun blast, killing the dog. Suspect Dennis Tuttle, 59, initially retreated but returned with a .357 Magnum, the chief said. The officer collapsed onto a couch in the living room.
As the other narcotics officers charged through the door – which Acevedo described as a "fatal funnel" – the second suspect, Rhogena Nicholas, 58, tried to wrestle the shotgun away from the officer on the couch. Police quickly shot here.
More gunfire was exchanged as the 54-year-old officer who breached the door ̵
"He immediately knew his partners were down and he made entry. When he made entry, he got shot," Acevedo said. "You know your brother's down, you are going to see what they did."
The chief became emotional as he recounted the long-term veteran passing on his policy. It said, "I had to get in because I knew my guys were down," according to Acevedo.
After more gunfire, everyone in the house had been killed or wounded, and four officers went to rescue their injured counterparts.
Investigators found no heroin on the premises, but they found marijuana and white powder believed to be the powerful prescription painkiller fentanyl, Acevedo said. They also saw three shotguns and two rifles, he said.
Both suspects' relatives have been notified of their deaths, the chief said.
Acevedo and Michelle McNutt, chief of trauma surgery at Memorial Hermann-Texas Medical Center in Houston, provided updates on four of the officers, explaining that the family of the fifth officer has requested no information released:
• The 54-year-old who "heroically made the entry" was shot in the face and required surgery. He is recovering, but the facial trauma team will have to perform more operations in the future.
• A 50-year-old sergeant who suffered a gunshot wound to the face required surgery. The officer, who has 25 years on the force, is stable and will be released later Tuesday or Wednesday.
released later this week.
• The first officer through the door, a 33-year-old, was shot in the shoulder and has been released. The officer has 10 years on the force.
• The last officer, whose family requested privacy, is a stable condition. Acevedo said he was concerned about the officer, who is "in a really tough fight" and "needs prayers."
Because the officers work undercover, their names aren't released at this time.
The 54-year-old officer is no stranger to taking a bullet in the line of duty, the chief said. The 32-year veteran was shot in 1992 and 1997.
"He's done something in life that God really watches over him," Acevedo said.
The chief described him as a big, strong teddy bear who is "tough as nails." The only thing larger than his physical stature, the chief said, is his courage.
Mayor Sylvester Turner said Monday the shooting market "a tough day" for Houston.
"Pray for their families, pray for their spouses, their children, their parents, all of their loved ones," he said.
CNN's Tina Burnside, Jason Morris and Darran Simon contributed to this report.