He was not living with Sybrina Martin. On Feb 26, 2012, Tracy Martin was married to Alicia Stanley. Trayvon had been living with Alicia "90%" of the time" since Trayvon was about 3, and according to Alicia, ever since then, for the past 14+ years. Alicia Stanley Interview of Anderson Cooper - June 28, 2013.
We don't know where Tracy or Trayvon Martin were living in February 2013, but it was not in Sanford. Sanford is where a girlfriend, Brandi Green, lived. There was an interview a year or so ago that contained a claim that Trayvon was living with an uncle.
We don't know the real reason Trayvon was put on a bus in Miami and sent to Sanford. Was one of his mothers kicking him out? Did his uncle kick him out? Did Tracy volunteer? What is Brandy Green's attitude about having Trayvon as a houseguest? As a possible stepson?
Thank you for the information. I misunderstood some data from the timeline apparently.