A 23-year-old man has been arrested following a court hearing in which Ben Blakeley admitted he had killed his girlfriend Jayden Parkinson, 17.
Thames Valley Police said threats were allegedly made against someone in the public gallery during the hearing at Oxford Crown Court on Monday.
The man from Didcot was arrested today after a public order offence was reported in Craven Way later that evening.
Police say the incident is being linked to the court hearing.
The suspect is currently in police custody.
Blakeley, 22, of Christchurch Road in Reading, has admitted killing Jayden in December and disposing of her body but denied murder and will face trial in June.
A 17-year-old Didcot boy, who cannot be named, denied perverting the course of justice.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules hereComments are closed on this article