The mother of a murdered Surrey schoolboy has warned Kingston parents of the hidden dangers of the internet.

Lorin LaFave’s son Breck Bednar was just 14 when he was groomed online by Lewis Daynes – an 18-year-old he had been gaming and chatting with.

Daynes stabbed the Caterham schoolboy to death in February 2014 and then posted pictures of his body on social media before sending them to Breck’s friends.

Ms LaFave visited Kingston College on Tuesday to talk about her son’s murder and her charity, the Breck Foundation.

Despite limits on his access to electronics, parental controls and a ban on playing games with Daynes, her tech-savvy son always found ways to get around the blocks.

Breck was invited into a group on TeamSpeak, software that allows gamers to voice-chat while they play.

Ms LaFave said: “When they invited him into an online gaming group I was delighted. But I noticed there was a deeper, older voice I didn’t recognise.”

Daynes, who set up the group’s gaming server, told the others he was working undercover for the FBI in New York, and bought Breck an iPhone so they could communicate in secret.

Ms LaFave said Breck became moody and disengaged, and that things worsened when she banned him from associating with Daynes.

She said: “I became sure he was being groomed, but I didn’t know if it was for sex or terrorism or hacking.”

Ms LaFave called Surrey Police, which gave her a “false sense of security”.

She said: “I felt safe that if this was a 40-year-old paedophile they would say something”.

But Daynes was never investigated. On February 17, 2014, Daynes paid £100 for a taxi to drive Breck from Surrey to Essex. He was never seen alive again.

Daynes was sentenced to a minimum of 25 years in prison for murder in January 2015.

Ms LaFave said her son had a school assembly about the dangers of the internet before his death but had found it “boring”.

She said: “When I go to schools I say, ‘Don’t listen to me, think about what Breck would say now.’ “He was clever, but they all believed this predator was someone to be trusted.”

Ms LaFave told the audience her first call should have been to the Child Exploitation and Online Protection Centre (CEOP), which investigates suspected cases of online grooming. In 2012-13 CEOP arrested 192 people.

An Independent Police Complaints Commission inquiry found a call handler lacked vital knowledge that could have helped Ms LaFave.

Surrey Police also failed to check the Police National Computer, which would have shown Daynes had been accused of raping a minor.

The force paid Breck’s parents an undisclosed sum in March.