Two additional individuals have been apprehended in connection with the tragic deaths of elderly great-grandparents who perished in a devastating arson assault at their residence in St Helens.
Eric Greener, aged 77, and Sheila Jackson, aged 83, succumbed to the inferno in the early hours of July 15.
Merseyside Police announced on Thursday that a 33-year-old man from Aigburth was detained on suspicions of conspiracy to commit murder and possession of cannabis.
He has been transported to a police station for interrogation.
A 36-year-old female from Everton was taken into custody on suspicions of conspiracy to commit murder and arson. She has been granted conditional bail.
Lee Owens, aged 46, with no fixed address, has been formally accused of two counts of murder and arson with intent to endanger life. He has been detained in custody and is scheduled to appear at Liverpool Crown Court on November 28.
Eric Greener. Pic: Merseyside Police
Detective Chief Inspector Steve McGrath conveyed, «Significant advancements have been achieved, yet I also urge anyone with pertinent information to step forward if they have not already done so.
«Please refrain from presuming that we are already aware of something that could be a crucial puzzle piece. Let us conduct the evaluation and take the necessary measures.»
A 31-year-old male from St Helens, who was arrested on murder suspicions, remains under conditional bail.
A 48-year-old female of no fixed abode, a 53-year-old female from Anfield, and a 45-year-old male from Liverpool, all apprehended on suspicions of conspiracy to commit murder and arson, have been granted conditional bail.