Jane this man had no personal effection or attatchement to Jeremy Bamber. He didn't like him him. He nicknamed him if I recall correctly " the cuckoo" I have no idea whether this is reference to Jeremy's parentage or mannerisms. He also on record stated Jeremy told him he could " easily kill my parents" come on, even if he wasn't believed why did he not report Bamber from the get go???
"Cuckoo", a cruel, though possibly apt, nickname to give an adopted child is said, as is "easily kill my parents", by Jeremy's supporters, to be erroneous. There's no way to prove it one way or another. SO! let's look at why he didn't hot-foot it to the police with his suspicions from "the get go"? I can only suggest it was because he wanted to feel he was certain in what he believed. Jeremy's own behaviours over the following days, his 'inaccuracies' when he was talking to the police would all have helped him to build up a picture and provide something concrete.