The murderer's memorabilia.

He wants it back. And he's suing his former lawyer, Hugo R. Harmatz, to get it:

[David] Berkowitz is serving six sentences of 25 years to life for killing six people and wounding seven in New York City in 1976-77.

He said he gave the materials to Harmatz for safekeeping and for use as props for a youth offender program. He sued Harmatz last June after learning the lawyer planned to use them as material for a book.

The lawyer claims letters from Berkowitz show the killer intended the materials as gifts. But the judge wrote in her decision that the letters do not "unequivocally establish" that.

Yikes! I just found myself siding with the serial killer. Compose your own lawyer joke.