An investigation is underway after Milwaukee Police officers shot and killed a homicide suspect who lunged at them with a knife.

Officers were called to the intersection of 5th and Clarke just after midnight to investigate a stabbing. 

a 49-year-old man was taken to the hospital, but died on the way from stab wounds. 

That's when neighbors say the suspect returned, holding a kitchen knife.

     "Sure enough, I look down the street, and here comes the guy in the middle of the street, with a knife, with blood still on it," says Alphonzo Johnson. 

"They said drop the knife, drop the knife, and he kept saying, 'or what?'. All of a sudden, boom, boom, boom, they shot him."

Police say multiple officers fired their guns, killing the suspect in the middle of the street. 

     "The flashlight was still on him while they were shooting him," says Johnson. "It was like a movie." 

Police say the suspect is a convicted felon, on probation for strangulation.

They have not released his identity, or the identity of his alleged victim. 

The Wisconsin Department of Justice is now investigating the officer's use of deadly force. The officer's involved have been placed on administrative leave. 

     "They had to protect themselves," says Johnson. "He got really close to the police before they shot him."