A 19-year-old man has been charged and two other men arrested in connection with the shooting outside a central London church.
Alrico Nelson Martin, from Kilburn, north-west London, will appear at Willesden Magistrates’ Court on Wednesday charged with six counts of possessing a shotgun with intent to endanger life and conspiracy to wound with intent.
Two other men, aged 22 and 23, were arrested on Tuesday on suspicion of conspiracy to murder, the Metropolitan Police said.
Four women and two girls, aged 11 and 7, were shot dead at a funeral at St Aloysius Church in Phoenix Road, Euston on Saturday 14 January.
None of them are life-threatening, although one of the 48-year-old women remains in the hospital.
The memorial service was a memorial service for Sarah Sanchez, 20, and her mother, Frecia Calderon, 50, who died in November.
Ms Sanchez suffered from leukemia for three years before succumbing to the disease after her mother died suddenly of a rare blood clot on arrival at Heathrow from Columbia.
Anyone with information about what happened can contact police on 101 or tweet @MetCC quoting 3357/14JAN, or contact Crimestoppers anonymously on 0800 555111.
The 22-year-old man, who was arrested on January 15 on suspicion of attempted murder, was released on bail until April.