OKLAHOMA CITY -- Oklahoma City police are asking for the public's help to catch a suspected killer.
Investigators released surveillance video they said they believe shows a woman wanted for murder.
The deadly stabbing happened last week near N.W. 9th St. and Classen Blvd.
The video doesn't show the actual murder but it does show the suspect on scene close to the time the killing took place.
A small wreath now marks the spot where 29-year-old Chad Falling bled to death in front of his friends.
"I looked at him as he was grabbing his shirt," family friend Sarah said. "All of a sudden, I seen blood all over his shirt. We seen him die."
Oklahoma City police were first called to the scene last week after Falling got into a dispute with another man.
During that fight, police believe an unidentified female suspect pulled out a knife and killed Falling.
"I have never seen nothing in my life that scary," Sarah said.
Investigators hope pictures taken by surveillance cameras at an adjacent apartment complex help solve the case.
"Investigators have obtained surveillance of the suspect walking through the complex about the time of the killing," Oklahoma City Police MSgt. Gary Knight said.
The female suspected of murder can be seen spitting over a railing and then walking casually up the steps.
A short time later, the same suspect ran down the steps in a hurry.
"We're trying to get her identified. She is a suspect in this case and we want to know who she is," Knight said.
Falling's friends simply hope the suspect responsible for the death is brought to justice.
"They took a life for no reason," Sarah said. "He wasn't done living. Please tell someone if you know something because they took an innocent life for no reason."
So far no arrests have been made.
Anyone with information on this case is asked to contact the Oklahoma City homicide tip line (405) 297-1200.