Britain’s deadliest suicide bomber dealt drugs on the streets of Huddersfield, it was said today.

Former addict Juliet Davidson has revealed how she used to buy heroin and crack cocaine from teenage bomber Jermaine Lindsay in Dalton.

The single mother — who has been free from drugs for three years — said she was shocked to discover her former dealer was at the centre of the London terrorist attacks.

Lindsay was the terrorist who carried a bomb on to a Tube train at Kings Cross on July 7, killing 26 people.

Juliet said: “I was absolutely gobsmacked.

“I could have understood him attacking someone, but not a bomb.

“I never thought he would have killed himself like that.”

Juliet, 26, first met Lindsay — known to her as G — five years ago outside a row of shops in Harp Inge, Dalton.

He was just 14 at the time and a student at Rawthorpe High School.

She said: “He used to hang around and when I was going there to score one day he asked me to get my drugs off him.

“I used to get heroin and crack cocaine off him every day for about two years.

“I saw him change a lot in the last year I was scoring.

“When I saw him wearing his Islam outfit I thought what’s he up to?

“He was always going on about racism.

“He thought all white people were trash and said he was going to get them all on drugs to kill them off.

“I don’t think he was into anything more himself than a bit of cannabis.”

Juliet, formerly of Rawthorpe, said Lindsay also became more aggressive as time went on.

She said: “He started getting arrogant and snapping at anything.

“He once badly beat up someone I knew for just a fiver.

“He looked down his nose at everybody.

“I can’t understand why people are saying he was a nice person. He wasn’t.”

Lindsay grew up in Huddersfield and went to Stile Common Infants School at Newsome and Rawthorpe Junior.

Former classmates said he was a great guy before he converted to Islam when he was about 15.

Lindsay married another convert to Islam, Samantha Lewthwaite, after meeting via an internet chatroom.

The pair married in Aylesbury, Buckinghamshire, where they set up home and had a child.

But they split after a row, just two days before Lindsay met three other suicide bombers — including Mohammed Sidique Khan, of Thornhill Lees, Dewsbury — and travelled to London on his murderous mission.