Did you know that the top command can also be used interactively? For instance, enter top, and view the output. Then, without hitting the Ctrl+C to stop the process, hit the u key, and enter the username of one of the users. That should only show the processes owned by the user you entered. Also, if you want to kill a process, just hit the k key, then enter the process ID, and finally enter the type of signal that you want to send (it defaults to 15, which is the SIGTERM signal).