Both circumstantial and DNA evidence relating to some of Kraft's murders have caused many to strongly suspect that not all of the murders attributed to Kraft were committed by one person. The prosecution believed these inconsistencies could only be explained by the presence of an accomplice. It is contended that Kraft would have had difficulty moving around 200-pound (90 kg) corpses. Dumping them from moving vehicles while alone would also be difficult to do unnoticed.
Abrasions and debris found at some of the crime scenes, where bodies had been discarded upon or alongside freeways, indicated that they had been discarded from vehicles traveling at more than 50 miles per hour, and for one individual to perform this act without compromising his driving would be very difficult. Moreover, footprints in the sand close to where the body of John Leras was found at Sunset Beach in 1975 unequivocally indicate two people had carried the youth's body to where it was discarded. In the case of Eric Church, semen samples found on his body were inconsistent with Kraft's blood type, and, while the photographs of the victims found in Kraft's car had to have been processed somewhere, no photo developer ever reported Kraft's morbid images to the police. (Kraft himself had no darkroom expertise or darkroom equipment.)
During Kraft's trial, members of the prosecution admitted privately that they did not charge him with several murders that they were certain he had committed because of facts relating to the cases which indicated more than one perpetrator. Although DNA evidence found upon the body of Church was incompatible with Kraft, investigators had found photographs depicting Church in Kraft's car and his distinctive Norelco electric razor was also found in Kraft's house.
It is very plausible that there is a connection to Dean Corll and his associated pedophile network in Houston. From page 99 of the Pasadena TX police docs on Corll:
LAPD detectives J.P. St. John and Kent McDonald were investigating a series of "homosexual-related murders" in their jurisdiction which had been occurring since 1971. That almost certainly refers to the Freeway Killer murders, though whether it's Patrick Kearney, Randy Kraft, or William Bonin is not 100% clear. The detectives received information that one of their suspects in these murders had spoken of being friends with Corll: first meeting him in New Orleans and then visiting him in the Houston area.
If I had to guess, it is referring to Kraft. His recorded murder spree, which began in 1971 and mostly took place throughout the 1970s, is the best match for the timing (Kearney began in the 60s, and he did have victims in the 70s but it appears that none of his 1971 victims were found until years later; Bonin officially began in the late 70s). Plus Angel of Darkness by Dennis McDougal, a true crime book about Kraft, discusses St. John and McDonald as members of the task force on the murders later attributed to Kraft.
Of course, that distinction relies on the idea that the Freeway Killers' activities were unconnected to each other, which I highly doubt is the case.
https://www.latimes.com/archives/la-xpm-1990-10-16-vw-2762-story.html
I was unaware of the other freeway killers but I recently watched a documentary about Bonnin who had accomplices. I think it is possible that Kraft had accomplices. Now I am not sure if they knew each other prior to prison
General Discussions | Freeway Killer(s)
Kraft would have to have very long arms in order to drive over 50 miles an hour open the passenger side door and throw his victims out. You can't even do that while cruise control is on. That alone proves he had accomplices.