Police are continuing to question two people in relation to separate stabbings just hours apart which claimed the lives of two teenagers.A 15-year-old boy has been arrested on suspicion of the murder of Tamim Ian Habimana, also 15, in Woolwich, south-east London, on Monday evening. A spokesman for the victim’s school said students and staff were “devastated” to hear of the “tragic and senseless loss of a child’s life.” Meanwhile, a 29-year-old man was arrested on suspicion of the murder of Keane Flynn-Harling, 16, in Lambeth, south London, on Monday night. The Metropolitan Police said the families of both victims are being supported by specially trained officers. The number of violent teenage deaths in London this year could be one of the worst in nearly a decade. As of Tuesday, a total of 21 teenagers had been killed in just over six months this year in the capital, leading to …