Investigators say that Martinez was killed after 1:00 p.m. Tuesday at Avenue K and East 13th Street in Lancaster.
"He was a good uncle and he was a good father. He was a good grandfather and everybody loved him. We will all miss him," said Alice Hensley, victim's niece.
Hensley says her uncle was a retired employee of Edwards Air Force Base. She says that after his wife and one of his children died, within the last several years he started walking at all times of the morning and night to deal with his grief.
All he wanted to do is to take his walks. He enjoyed his walks around town. He was just like anybody else, he just wanted to live. He lived out here for a very long time so he felt safe walking around. It is very sad to see something like this happen to a man who couldn't fight and didn't deserve it," said Hensley.
John Holland of H & W Archery in Lancaster, unlike a bullet fire from a gun, there is no way to trace an arrow to a suspect or determine through scientific methods the last time a bow was discharged.
He says that the archery industry is making an attempt to ID arrows.
"They do not serialize arrows. But some companies are starting to put a batch number on them. It is not a serial number, it is just a batch number. The company knows where those arrows were sent," said Holland.
Authorities need the public's help catching the suspect or suspects. Anyone with information is urged to call L.A. County Sheriff's Homicide Bureau at 323-890-5500.