A man has been arrested in connection with the murder of a 28-year-old in west London.
Jaabe Roberts, 28, was stabbed in Shepherd's Bush in the early hours of Wednesday.
A Metropolitan Police spokesman said a 34-year-old man had been arrested at a caravan park in West Sussex on Monday and was being brought to London.
Two people have been given police bail over the murder, while two others have been released without charge.
Mr Roberts suffered a stab wound to the heart and died in hospital shortly after the attack.
His mother, Marcia, said: "I, along with his sisters and nine-year-old brother, cannot understand why this has happened to our beloved son and brother.
"His brother keeps asking what's wrong with Jaabe and why he can't come home.
"We are appealing to anyone with any information to please pass this on to the police."