frankie santos jr. walking from west san carlos in san jose to where santos lived and was attacked. he was erica's son. >> it's horrific. it's empty. you want to -- you call to hear a voicemail just to hear his voice. he doesn't answer. you can't have your long talks with him anymore. >> reporter: the friends say santos arrived home around 1:30 sunday morning when there was a confrontation with someone outside of his house and he was sta stabbed in the chest. santos would later die at the hospital. the santa clara county sheriff's office released this picture, a full-size dark chevy or gmc investigators say is associated with the killers. >> somebody help us, please. help us catch somebody who took my baby away from me. >> reporter: santos' wife and two young kids now without a father. his mother has words for the suspect. >> i pray that nothing ever happens to you, because you're