Assassinations are increasingly become Pakistan's reality, we go back a year to another murder - of activist Sabeen Mahmud. Ms Mahmud was shot dead last year on April 24th by Islamic fundamentalists. Ms Mahmud was the founder of a unique cafe - T2F - in Karachi. A year later, T2F is back on its feet, and continues to be one of Karachi's most important cultural space. This weekend, Ms Mahmud's death anniversary will be marked by a gathering of more than 150 artists. On Art Matters this week, we remember Sabeen Mahmud with a visit to the café she founded.