Police released video that lasts about 15 seconds. It was taken right around the time of the fire and the murder.
The source, according to police, is from a person involved with local neighborhood watch.
In the video, two people can be seen. One person in a white shirt is a person of interest police want to interview. Police say a person in a dark T-shirt resembles the suspect they are looking for.
"I don't know," said Gail Cameron, Chere's mother. "We have just got to find this man that did this to my beautiful daughter. It's just not fair."
Chere Osmanhodzic's family, friends and police are asking the public's help in finding the two men seen in the surveillance video. It was taken a block away from the murder scene.
The man in the dark shirt, according to police, fits the description of the suspect in a composite drawing.
It was last Saturday night about 7 p.m. when Osmanhodzic's fiancé went to her house. There he confronted the suspect and chased him for a few blocks but the suspect got away. When he returned he found Osmanhodzic's home on fire. When the fire was put out, firefighters discovered her body.
"No father and mother should have to bury their kids before they go. It's not the way it's supposed to be done," said said Mike Cameron, Chere's father.
The city of L.A. has put up $50,000 in reward money. Police are hoping that will lead to a break in this case.
At Thursday morning's news conference, Chere's family and friends wore T-shirts that had the suspect's composite skethc and description on it. They had a message for Chere's killer.
"You can try to run -- and you can try -- from man," said Laci Culvey, a friend of Chere's. "But you cannot run from the wrath of God. Ever."
"I need to re-emphasize that we need the public's help," said LAPD Capt. Justin Eisenberg. "This is an atrocious act. This is shocking what has occurred and we're going to catch this person. We're going to need the public to do so."
Police emphasized that the fiancé is not a suspect in this. He's kept away from the media and the public while he deals with the loss of his fiancée.
If you have any information on the two people seen in the surveillance video, you're urged to call the LAPD at (877) LAPD-24-7.