fratricide moonshine A person who kills the own Brother or sister 000604 ... The Schleiffen Man brother in particular.... murdering a sister is sororicide (to keep with the greek prefixes) 000604 ... silent bob is cain a fratricidal maniac? cuz he killed that guy..his brother. abel. ahem. 11:47. I want a grilled cheese sandwich. Sigh. 000604 what's it to you? who go blather from