I have spoken to Mark today and asked the question. He did not have a pre sentence report as he has no previous convictions.
You are quite clearly being led up the garden path Daisy.
Why don't you tell Mark that "previous convictions" are not relevant to pre sentence reports for murder!
This article, and others and indeed much of what Mark has asked you to post here suggests he did indeed have a pre sentence report
https://www.bbc.co.uk/news/uk-england-beds-bucks-herts-11259049 You may want to read and absorb the following and let Mark know he's not pulling the wool over our eyes!
"The definition of a pre-sentence report is contained in s. 158 Criminal Justice Act 2003
158 Meaning of "pre-sentence report"
(1) In this Part "pre-sentence report" means a report which:
(a) with a view to assisting the court in determining the most suitable method of dealing with an offender, is made or submitted by an appropriate officer, and
(b) contains information as to such matters, presented in such manner, as may be prescribed by rules made by the Secretary of State.
The court is required to obtain a Pre-Sentence Report (PSR), or a Specific Sentence Report (SSR) prepared by the Probation Service or the Youth Offending Team before imposing a custodial or community sentence: s.156 Criminal Justice Act 2003
The PSR should include an assessment of the nature and seriousness of the offence, and its impact on the victim.
The PSR must be disclosed to the offender or his legal representative: s.159(2)(a) Criminal Justice Act 2003
The PSR must also be disclosed to the prosecutor, if the prosecutor is a Crown Prosecutor, or represents the CPS, Revenue and Customs prosecutors, the DSS or the SFO. If the prosecutor is not of a description prescribed by order of the Secretary of State (e.g. Local Authority), a copy of the report need not be given to the prosecutor if the court considers it would be inappropriate to do so: s.159(2)(c) Criminal Justice Act 2003
If the offender is under 18, the court must give a copy of the report to his parent or guardian, even though a copy may also have been given to the offender or his legal representative: s.159(2)(b) Criminal Justice Act 2003
https://www.cps.gov.uk/legal-guidance/pre-sentence-reportsDangerous Offenders
In assessing dangerousness, the court will need the benefit of a pre-sentence report. Probation officers have been carefully trained to include an assessment of the risk in the report, but will need the CPS to provide them with not only the usual PSR information package, but also with the facts of previous relevant convictions and the information relevant to a pattern of behaviour. Such information should be provided by the police with the case file on Form MG16, and should normally be provided to the Probation Service with the PSR information package. When accepting pleas to lesser offences or on a less serious basis, prosecutors should notify the probation service so that the new basis of sentencing can be factored in to the risk assessment by the probation officer.