Emergency services were called to the Halifax bank opposite the recently closed down police station at around 6.50pm.
The victim was rushed to hospital in a critical condition but died at around 2.30am on Tuesday morning (February 28).
In a letter to getwestlondon , Labour's Navin Shah said : “I was deeply saddened to hear that we have lost yet another life to knife crime on our streets.
“It deeply concerns me that these devastating incidents seem to be happening more and more: the escalation of knife crime on our streets is not something any of us should accept.
“Locally we must act to tackle knife crime.
"In Brent and Harrow we need to engage with young people, setting out the dangers of carrying knives and the need to report violence of any kind.”
Mr Shah highlighted the deaths of 19-year-old Djodjo Nsaka near Wembley Stadium and Quamari Serunkuma-Barnes who died aged 15 – both stabbed to death this year.
He joins the MP for Harrow West Gareth Thomas in speaking out after the shocking incident on Monday .
On Tuesday, Mr Thomas raised concerns about cuts to the numbers of police officers in recent years.
Mr Shah added: “It's time we put a stop to these awful acts before more local lives are tragically lost.”
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