Nobody seemed to notice, but one of Akron’s most notorious criminals died a month ago at the age of 86.The obit was a mere eight sentences long.It said he died in his sleep, but it didn’t say where.Turns out Frank Sprenz took his last breath at the Grafton Correctional Institution.Which is preferable, I supposed, to at least one of his previous residences — Alcatraz, where he was inmate No.