Need urgent help with MySQL error

Our web site is down since MySQL can not be started. It gives the following errors when trying to start it root@serv [~]# service mysql status MySQL is not running, but lock exists [FAILED] root@serv [~]# service mysql start Starting MySQL..Manager of pid-file quit without updating f[FAILED] root@serv [~]# The issue started happening when the root user issues the following command #kill all -1 nginx Which caused the ssh connection to disconnect and subsequently a graceful reboot was done. After which the mysql error started happening. We have tried killing mysql pid and removing the lock by rm /var/lock/subsys/mysql ========= You must have expert knowledge of MySQL/Linux and able to start urgently due to the nature of the issue. This is a live production site. Thank you. OS Centos 5 64bit / Cpanel