Cannot delete stubborn files

[Jack Stone]

Hello:
I have 2 files that resists all efforts to delete them. I can even move them 
to another directory, but still cannot delete. Can chmod too, but still same 
resistance;

I originally figured they occupied a bad spot on the HD, but now not sure 
about that.

Please, any suggestions about what to do to remove these files?

Here are the files and the error message:
rm: local/lib/perl5/5.6.1/mach/Sys/Hostname.pm: Operation not permitted
rm: local/lib/perl5/5.6.1/mach/Sys/Syslog.pm: Operation not permitted

I've gone all the way down to the last dir and tried to delete them there. 
No joy!
All directories in between only include the dirs and no files. I want to 
delete the entire path of directories, but those 2 stubborn files will not 
permit that.

rm: local/lib/perl5/5.6.1/mach/Sys: Directory not empty

Please, any help appreciated!

Thank you,
Jack L Stone.

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