Tributes have been paid to the victim of a stabbing in Isleworth , who has been named locally as Sahil Roy.
Perry Bentley said he had spoken to Sahil hours before he died.
"I was with him that day and we were chilling in the sun," he told getwestlondon.
"The last thing I said was "Whatsapp me", and now I'm never going to see him again.
"I grew up with him and he was a quiet guy. He always wanted to help people. It's just crazy. It always happens to the people who don't deserve it.
"He was a relaxed guy, always cracking jokes and trying to help people. He was a big friendly giant, such a kind and loving guy."
'Dispute over spliff'
Mr Bentley said he had heard Sahil was stabbed three times in the neck following a dispute over a spliff.
He said the Ivybridge estate had a bit of a reputation but it was totally undeserved.
"The estate's not even like that, even though people might say it is," he said.
"We're all just cool. We're just a big group of friends. There's never any commotion on that estate and this is a big shock to everyone."
Friends of the victim, who was reportedly stabbed in the neck, have also taken to Twitter and Facebook to pay their respects.
dZ Erupts - TC tweeted: "My condolences, nobody deserves that. My prayers for his family, friends and loved ones. RIP Sahill, GBNF!"
dZ Smalls - Team Cap wrote on Twitter: "RIP SAHILL can't believe you got took today man I'll see you again soon love you bro
Mons tweeted: "RIP Sahil a good life cut short way too soon. You'll forever be in our prayers."
'Proves it can happen to anyone'
Police said on Monday morning that the victim's next of kin were in the process of being informed and enquiries were ongoing.
One man said it was the second stabbing in the space of a week on or around the Ivybridge estate.
Smallz Bentley wrote on Facebook: "The bro is actually gone most calm guy in ends how can it happen to you of all people f****** hell just proves it could happen to anyone RIP SAHILL all my love and respect goes to your family."
Teejay York posted on Facebook: "Sahill r.i.p bro. Still such a shock. Slept tight mate."
Police on Wednesday (April 12) requested that Hounslow Council suspend bin collections at the estate as investigations continue.