Mysql unistall but a process still running (Ubuntu)

[David Alvarez Mazzo]

I was trying to reinstall MySql.

First I stopped the service with: sudo service mysql stop

I uninstalled MySql using: sudo apt-get purge mysql-server mysql-client mysql-common mysql-server-core-* mysql-client-core-*

and removed configuration and data using: sudo rm -rf /etc/mysql /var/lib/mysql

Also I removed unnecessary packages and apt cache using: sudo apt autoremove
sudo apt autoclean
But when I check, a process still running with mysql: ps -aux | grep MySQL

user 437 0.0 0.0 8164 724 pts/0 S+ 16:13 0:00 grep --color=auto MySQL