Second Book of Paralipomenon (Author Compiled by Isaias and Esdras from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
Chapter 24
25et abeuntes dimiserunt eum in languoribus magnis surrexerunt autem contra eum servi sui in ultionem sanguinis filii Ioiadae sacerdotis et occiderunt eum in lectulo suo et mortuus est sepelieruntque eum in civitate David sed non in sepulchris regum
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.