MASHANTUCKET, Conn. -- New forensics evidence presented Tuesday during a symposium at Foxwoods suggests Sirhan Sirhan did not fire the fatal shots that killed Sen. Robert Kennedy in 1968.

Experts from all over the world met Wednesday to discuss problems in crime solving during the annual symposium, hosted by the Henry C. Lee Institute of Forensic Science. This year’s event was about conspiracies and solving complex crimes.

Dr. Robert Joling, a forensics investigator who has studied the Robert Kennedy assassination for almost 40 years, determined that the fatal shots must have come from behind the senator.

Sirhan, however, was 4 to 6 feet in front of Kennedy and never got close enough to shoot Kennedy from behind, the investigator said.

The other evidence was the Pruszynski recording. This is the only audio recording of the assassination. Another scientist analyzed it and concluded that at least 13 shots were fired from two different guns.

Philip Van Praag, a forensic engineer, said he made three discoveries.

The first two demonstrate that there must be more than one shooter, he said. The third conclusion is that the shots fired by the second shooter matched the firearm a security guard behind Kennedy carried.

Joling and Van Praag presented their findings together, although the two investigated the Kennedy shooting independently. They had never met until last year. During a seminar, they realized their separate findings were perfectly wed.

Sirhan Sirhan remains jailed in California.