Although only a teenager, she already had a baby by an Asian man, Ishaq 'Zac' Hussein, a 20-year-old.
But her mother revealed that he refused to recognise the child and Miss Wilson was really in love with his friend, Ashtiaq Ashgar. She admitted: '"Ashtiaq was her first love, she adored him."
Stung by Mr Hussein's rejection of her and their child, Miss Wilson decided to confront the men's families and tell them she had had sexual relations with both of them.
Detective Superintendent Mick Mason, now retired from South Yorkshire Police, believes this may have been the trigger for a plan to kill her.
Officers know from analysing records of the two men's phones that after the meeting there were text messages discussing buying a gun.
DS Mason said: "I think it was all about shame. In their eyes, Laura had brought shame on the family by coming round. Their son had also brought shame on the family."
In October 2010, three days after the confrontation, Miss Wilson agreed to meet Mr Ashgar by a local canal. Police believe he began a frenzied knife attack on the girl before throwing her into the water.
The two men were arrested and tried for her murder. The pathologist in court revealed that Miss Wilson had been stabbed in the top of the head repeatedly as she tried to struggle out of the canal.
Mr Ashgar was found guilty and sentenced to 17 years in prison and Mr Hussein was acquitted.
DS Mason added: "I have seen many murders in my time, but this was the worst."