If anyone's interested I've got a timeline here. It doesn't include everything like all the phone contact with friends and others, but it's got the main events after reporting Helen missing.
Fri 15[SUP]th[/SUP] April
3:37pm IS phoned 101 to report Helen missing.
7pm to 10pm Police went to house and conducted a search of house and garden. On her macbook Helen’s email page was open but her browser history was blank. Her iPad was locked and IS couldn’t find the password. Jeep in driveway. Declined publicity of Helen’s disappearance, said she would be angry. Said she was likely to be in a hotel that takes dogs. Said he’d been unconcerned until he spoke to John Bailey on 13th. Shocked that police found Helen’s passport. Followed police everywhere, watched their every move, questioned everything they were doing.
Midnight IS emailed Helen stating his undying love for her.
Sat 16[SUP]th[/SUP] April
IS drove to Broadstairs. Helen's phone connected with the router. Said clothes may be missing. Later agreed with John B that police could go public. Posted a message on Facebook saying Helen missing.
Mon 18[SUP]th[/SUP] April
IS told nurse @9:45am Helen had gone missing on Friday.
IS drove to Leatherhead to see Tony Hurley. Spoke to Karen Cotter, distressed.
Christopher Priest went round for a couple of hours.
IS phoned Tony Hurley that evening.
Tues 19[SUP]th[/SUP] April
9:30am 14 police officers arrived at house and search of house and garden commenced at 10:30am (no dogs).
IS asked if their presence was necessary because the house had already been searched. Dismissive & throwing his hands up in the air. Following police around. Wider Royston area also searched. Jeep had been moved by this date into garage. Vehicles were not moved out of the garage during this search. At 3:10pm they became aware of the cesspit in the garden. It was full. IS told officers he was not aware of the tank. Fresh grass was trapped under the manhole cover, showing it had been recently lifted. Booked to have it drained on 22[SUP]nd[/SUP].
Weds 20[SUP]th[/SUP] April
IS posted on FB complaining about police intrusion, saying no news. He called Karen Cotter again wanting to know if Helen could access her money and asking if police had contacted her because he’d given them her number. IS’ friend Pamela Charles called him and he ended the call abruptly.
Police looked at IS’ phone.
9:30pm night - police searched the wooded area opposite the house.
Thurs 21[SUP]st[/SUP] April
IS very emotional @ nurse appointment. IS saw his GP for beta-blockers.
Police visited Broadstairs cottage and examined wireless router.
Police also went back to Royston house. IS called Christopher Priest and asked him to be there with him. Police asked IS to do a recorded interview. He would not agree. Said he couldn’t be bothered, snapped at them & kept cutting them short. Finally agreed to do one the next day.
Fri 22[SUP]nd[/SUP] April
3:31pm Margaret Holson received a missed Facetime call from Helen’s email account.
Police returned at 10:00am to drain the cesspit in the garden.
At 1pm a search of the house and garden was conducted with victim recovery dog. IS was not happy about it, and called out an officer from Major Crime Unit to the house to express his feelings. Police who had arrived to do his recorded interview were told by IS again he wouldn’t be able to be interviewed, he didn’t know police were going to be searching there again today, upset about dog being there, restless, pacing, looking out at back garden, worried about ornaments being broken. Dog indicated in several areas inside the house.
Police returned at 4:15pm, after the search team had left. He was interviewed for 2 hours starting at 4:40pm, not happy about recording equipment. Said Helen had loaded his car with large duvet. He didn’t remember driving anywhere, didn’t remember being at the doctors or the dump, couldn’t remember sequence of things, couldn’t remember what clothes he’d been wearing. Said the last time he remembered seeing Helen for definite was when she asked him to change his doctor’s appointment to the afternoon. Half way through interview he asked “Are we done then? I’m hungry.” At the end of the interview when the camera & machines were off IS asked if he was still the main suspect. Police asked him if he wanted to do a media appeal and he said no because the media would twist his words. He then eased up & started to crack jokes. He told police he felt he should be informed if they intended to search his house.
Sat 23[SUP]rd[/SUP] April
IS texted the police to say ‘any news?’ He asked to be re-shown a CCTV image of a woman in Morrisons but the police officer didn’t know anything about it. He said he’d found an old iPhone 5 of Helen’s, that a cream was missing and Boris’ yellow collar. Police returned to the house to see IS. He was there with Jamie. Keys to Broadstairs were returned to him. They asked general questions about things that could be missing for example Boris’ toys and leads. Police found him to be rude and dismissive.
Tues 26[SUP]th[/SUP] April
Police major crime unit took over the investigation.
Thurs 28[SUP]th[/SUP] April
Police returned to the house to collect anything of Helen’s with her DNA on it.
Sat 30[SUP]th[/SUP] April / Sun 1[SUP]st[/SUP] May
IS & Jamie in Sheffield for snooker.
Mon 2[SUP]nd[/SUP] May (bank holiday)
Police again had contact with IS
Weds 4[SUP]th[/SUP] May
Police 2[SUP]nd[/SUP] recorded interview. IS said he couldn’t remember when he’d last seen Helen’s phone – an iPhone 6, but not since she went missing. He said no one else would use Helen’s Facebook acct. He’s asked if her phone would connect to his BMW – says he thinks so. Says he asked Helen to marry him 3 ½ years ago (which commutes to Nov 2012) – about a year after her husband died (which commutes to Feb 2012). She didn’t want to tell anyone. He says they both still have ashes to deal with. Said Helen hadn’t been to see Arsenal play for 2 years – he would go with one of his sons.
Fri 6[SUP]th[/SUP] May
Police had contact with IS again. Community psychiatric nurse Sarah Tooley saw IS for 1[SUP]st[/SUP] time at 1pm, at her place of work. He had referred himself. He told her Helen had been missing for 10 days (actually 26 days, was this to prove his memory problems?) He told her about losing his wife too, 6 years ago and said he wasn’t coping. He said he couldn’t remember anything due to stress. He asked if self-harming would improve his memory of events. Said he was suicidal and he was stressed by police questioning him. Also seen by psychiatrist that day.
Sat 7[SUP]th[/SUP] May to Tues 10[SUP]th[/SUP] May
IS went to Broadstairs.
Mon 9[SUP]th[/SUP] May
Sarah Tooley spoke to IS by phone. He said he was in Broadstairs and had felt like jumping off a cliff but his father had supported him and he no longer felt like that.
Tues 10[SUP]th[/SUP] May
IS spoke to a colleague of Sarah Tooley’s by phone and said he was fine.
Weds 11[SUP]th[/SUP] May
John Bailey attended a press conference to make an appeal
IS released a written appeal
Thurs 12[SUP]th[/SUP] May
Arsenal emailed Helen saying her season tickets were due to expire. IS renewed them by phone on 16[SUP]th[/SUP] May 10:50am, @ £1577 each, using joint bank account but Helen’s card details.
Fri 13[SUP]th[/SUP] May
IS rang Sarah Tooley and said he was back in Royston and feeling better. He told her he had declined a police interview because he thought it would be too stressful. (I think he must be talking about the live appeal). He asked if he could give her details to police. Said he was having thoughts of self-harm.
Sun 15[SUP]th[/SUP] May
Helen’s online account last accessed. Not sure if this was her bank account or email account. (disclosed during ‘Arsenal tickets’ evidence, trial date 27[SUP]th[/SUP] Jan)
Weds 18[SUP]th[/SUP] May
9:30am IS refused to allow police search team to return to house. IS phoned his GP about not being able to sleep – GP increased medication.
IS told police that he had sought psychiatric help for suicidal thoughts. He said he had not tried to access Helen’s bank account, when told about the two log in attempts on 11[SUP]th[/SUP] April. Police wanted to look in the house and garage for electronic devices. Scenes of crime photographers turned up at the door. He said he was fed up with it and became very anxious. Said if Helen came back he wouldn’t want to be with her any more. Officers asked for the key to the garage but he wasn’t happy. He wouldn’t consent to a search of the garage but consented to photographs of it. His parents arrived. After being reassured that police hadn’t lifted the floorboards in Broadstairs he became calmer. But he declined to give them his phone – saying he needed it for his mental support team and if Helen tried to contact him.
Fri 20[SUP]th[/SUP] May
IS phoned and asked police if there was any news. He was calm but said he was angry with Helen for not letting anyone know she was alright.
Sun 22[SUP]nd[/SUP] May
Dog walk on Royston Heath to raise awareness.
Thurs 2[SUP]nd[/SUP] June
IS asked Helen’s solicitor for a copy of the power of attorney. He asked how he could invoke it.
Fri 3[SUP]rd[/SUP] June
IS phoned Sarah Tooley and asked if she thought he should go to Palma on pre-booked holiday planned for June 12th. She said she could not make that decision for him. He sounded more jovial.
Tues 7[SUP]th[/SUP] June
Police returned to Broadstairs and discovered wireless router missing from cottage.
Fri 10[SUP]th[/SUP] June
IS phoned Helen’s friend Jay (who had helped organise the dog walk) and said he was going to carry on with the holiday because he couldn’t get a refund and his mental health adviser had said he needed the break. He texted her to say not to make it public.
Sun 12[SUP]th[/SUP] June
IS flew to Palma.
Weds 15[SUP]th[/SUP] June
IS emailed police and told them he needed his phone. (I think this date has been reported incorrectly and should be Sat 25[SUP]th[/SUP] because he was in Palma on 15[SUP]th[/SUP])
Thurs 16[SUP]th[/SUP] June
IS emailed Helen’s friend Jay and said the holiday might not have been a good idea.
Fri 17[SUP]th[/SUP] June
IS told police by email he lost his phone while he was carrying two phones, in Cambridge. He didn’t even know the sim number and it was switched off when he lost it. (Again I think this should be Mon 27[SUP]th[/SUP] because that’s when he was declared a suspect and he was in Palma on 17th)
Sat 25[SUP]th[/SUP] June
6[SUP]th[/SUP] anniversary of the death of his wife, IS posted a message on FB saying he failed with CPR.
Mon 27[SUP]th[/SUP] June
IS was declared a suspect.
July - IS tried to progress the sale of the flat by going to see solicitor. He also said he would register the POA. He wasn’t happy.
Mon 4[SUP]th[/SUP] July
IS’ last contact with Sarah Tooley. Said he’d been on holiday and felt ok and was happy to be discharged.
Mon 11[SUP]th[/SUP] July
7:02am IS arrested at his home on suspicion of murder, taken to police station and interviewed. He denied murder/body disposal/stealing money, and then refused to answer further questions. House search began. Cars still in the garage as they were on 19[SUP]th[/SUP] April. Cars were moved to assist the cadaver dog handlers. Dogs did not react over cesspit hatch but did react in the room above. The dogs searched all the vehicles, including the BMW.
Tues 12[SUP]th[/SUP] July
IS released on bail to a hotel. Police lifted the manhole cover and replaced it. Re-tasked to drain the pit.
Fri 15[SUP]th[/SUP] July
Helen’s body discovered (with Boris) in the garage cesspit. (Not actually drained until 20[SUP]th[/SUP].) Excavation was started. IS re-arrested at 12:52pm at hotel he had been bailed to. Seen at police station by police nurse at 3:10 pm. He told her he had been suicidal about a month ago.
Sat 16[SUP]th[/SUP] July
IS charged with murder. Excavation continued most of day. Forensic dentist confirmed Helen’s identity.
Oct 12[SUP]th[/SUP] IS pleads not guilty
Dec 12[SUP]th[/SUP] IS serves his defence statement.