Pinky was the name given to Bhutto by her father Zulfiqar Ali Bhutto.
"Saddened and shocked that another exceptional leader is a victim of such violence. I mourn her loss and I extend my condolences to her family," wrote SarcasticCynic.
"Whether one agreed with the political philosophy of BB or not, she was a brave and courageous daughter of Pakistan, who despite failings espoused a liberal vision for Pakistan and its people," said Hyder Yusafzai.
COMPLETE COVERAGE: TURMOIL IN PAKISTAN