Saudi Arabia have said that the two terrorists who were eliminated yesterday were the master minds behind the attack on Masjid Ah-Nabawi during last Ramadan.
On the last 10 days of last Ramadan a group of terrorists tried to storm Masjid Ah-Nabawi. They tried to do this when the security guards were breaking their fast. When the guards tried to check them, the terrorists blew themselves up.
Masjid Ah-Nabawi is the second holiest mosque for Muslims. Prophet Muhammad (SAW) is also buried in a proximity of the mosque. In addition, Riyaazuh Jannath is also part of the mosque. Hence, it will be a great sin to attack such a holy place.
During the time of the attack several thousand Muslims were also spending time at the mosque. They tried to blow the mosque at a time where there were thousands of Muslims in the mosque to offer Magrib prayers.