Full story
Murder Charge
Ogunyankinnu was charged with the murder of 21-year-old film student Finbar Sullivan.
Sullivan was found with knife wounds near the viewing point at Primrose Hill and pronounced dead at the scene.
A 25-year-old man arrested on suspicion of assisting an offender was released with no further action.
Another man in his 20s was discovered with stab injuries nearby; his injuries were not life-threatening.
Detective Inspector Andy Griffin said, "My thoughts remain with Finbar's family."
Family and Community
Sullivan's father described the loss as the worst tragedy he could imagine.
Finbar had gone to Primrose Hill to use a new camera he had been given for his birthday.
He was a filmmaking student at the London Screen Academy.
He had ambitions to follow in the footsteps of his grandfather, cameraman Michael Seresin.
The park was busy due to the holidays and sunny weather.
Investigation and Public Appeal
Detective Inspector Andy Griffin emphasized the ongoing nature of the investigation.
The public has been urged to come forward with information or footage.
The 25-year-old man was released with no further action.
The investigation is being treated as a murder inquiry.
Police have increased patrols in Primrose Hill.
