e/Philadelphia poison ring

Information
has gloss	eng: The Philadelphia poison ring was a murder for hire gang led by the Petrillo cousins, Herman and Paul Petrillo, in 1938. The leaders were ultimately convicted of 114 poison-murders and were executed by electric chair in 1941. Paul's cousin, Morris Bolber, was among the 14 others in the gang, all of whom were sentenced to life imprisonment.
lexicalization	eng: Philadelphia Poison Ring
instance of	c/Italian American gangs