In a news conference in the spring of 1998, then-Chief Mark Beckner said Burke was not a suspect. In a May 1999 press conference, then-DA Alex Hunter reiterated that Burke was not a suspect.
Only James Kolar, who never worked the case, and who self-published his book, advanced the BDI theory, predicated on sibling rivalry and "SBP" - childhood Sexual Behavior Problems, based on a book he had read rather than any actual evidence that Burke displayed symptoms of that affliction.
The golf club incident that supposedly illustrated Burke's violent tendencies was related to Pam Griffin by Patsy Ramsey as an accident that occurred in Charlevoix.
The so-called scatological issues are also based on one incident according to Nedra Paugh, when Burke was six and his mother was in Boston being aggressively treated for Stage IV cancer.
The books BDIers point to as indicative of Burke's behavior problems are "The Hurried Child - Growing Up Too Fast", which more accurately describes JBR with her bleached hair, heavy make up, and provocative pageant costumes and poses. The second book, "Why Johnny Doesn't Know Right from Wrong" is about schools who give children the "wrong" books to read, and the necessity of parents reading the proper ones to their offspring and setting a good example, thus giving them a "moral education". How these somehow implicate Burke in the minds of BDI proponents is a mystery.
What we really have here is one DA's investigator (for seven months in 2001) who self-published a theory based on no evidence in a blatant attempt to make money on the murder of a child, and one network's ratings grabbing "docuseries" based on that book. No real facts, no real evidence, just money for all the participants, including CBS's script-following "experts".