Laurel Wamsley

Updated at 4:20 p.m. ET

Authorities say a fourth device that exploded in Austin, Texas, this month indicates a "serial bomber" — and one who is more sophisticated than the earlier bombs suggested.

In the latest battle involving the works of Harper Lee, the author's estate is suing producer Scott Rudin over the script of an upcoming Broadway play of To Kill A Mockingbird.

In a lawsuit filed in federal court in Alabama, Lee's estate complains that the new production by Rudin and writer Aaron Sorkin deviates too much from the novel.

The U.S. Justice Department has charged three Central Illinois men with the bombing of a Minnesota mosque in August.

Michael Hari, 47, Michael McWhorter, 29, and Joe Morris, 22, were charged with using an explosive device to damage the Dar al-Farooq Islamic Center in Bloomington, near Minneapolis. No one was hurt in the bombing, which exploded in the imam's office.

The state attorney in Broward County, Fla., announced Tuesday that he intends to seek the death penalty in the Parkland school shooting case.

In a news release, Broward County State Attorney Michael Satz said he had filed the notice of intent to seek death in the case against 19-year-old Nikolas Cruz.

Cruz has been charged with 17 counts of murder and 17 counts of attempted murder in the shootings at Marjory Stoneman Douglas High School last month.