I don't think its fair to call Jeremy a psychopath without knowing the full facts of an evaluation April or tag him with being one. One does not become a psychopath over night, it has many contributing factors over a period of time.
Those that say he is guilty say he planned the murders,. so in effect he planned the phone call, therefore he must have remembered that. He is hardly going to say he can't remember as apposed to yes I called Julie after I called the police. This minor detail took 4 pages up on his statement where Jones tried to put words into his mouth by trying to get Jeremy to say that he called Julie before he called the police. This same officer went out of his way to prove he called Julie before he called the police. So much so that he went to visit the girls the following year and concluded that the clock had been set 10 minutes on so therefore introduced another time of 3am which did not and never has fitted with the none of the calls that were made that night. One has to look back at original statements to see the times that people had given which all matched the time that Jeremy had first stated in his original statement. It was Jones that moved the goal posts, in fact it was Jones that challenged everyones times....I ask was this done to fit Jeremy to the crime, or was everyone changing their original times to suit. I am so suspicious of that man...I know it is wrong of me to say that, but I feel something is not right. 
If you think Jeremy is guilty, it is perfectly reasonable to believe he is a psychopath. If guilty, he planned and orchestrated the murders of 5 members of his family, including two six year old children simply because he thought it was time he received his inheritance - which he didn't think he should have to share. No one said Jeremy became a psychopath overnight -that's not the way it happens - how a psychopath reacts to a situation depends on the situation. You don't have to be a raving axe murderer to be a psychopath, most never kill and those around them may never realise. For Jeremy the murders were simply a means to an end - the family stood in the way of his comfortable, hassle free future so they had to go. He has never expressed any remorse nor admitted to guilt. The psychopath check list could certainly have been written for Jeremy and he has been described using similar terms by people who actually knew him.
Steph is right when she suggests that there are 'red flags' - in fact, it's like red flag day at red flag convention!
Jeremy didn't remember who he called first? Such an important life event and he can't remember?

More likely, Jeremy didn't want to commit himself because he wasn't sure how much they 'knew'. Interestingly, Jeremy didn't actually mention calling Julie at all in his first statement - he also said he called the police IMMEDIATELY after his fathers call, but couldn't have done if he buggered about looking for the number of the local station which he later said took him 10 minutes. This is obviously when he called Julie. Today, he claims that he didn't call police until 03:36, so the earlier claim that he called them 'immediately' must have been a lie and what was he doing for a full 26 minutes after the supposed initial call from Nevill? Oh what a tangled web!