A 59-year-old West Springfield-area man was charged with four counts of possession of child pornography.
During the October investigation, Fairfax County police arrested Dillon for allegedly failing to adequately update his information on Virginia's Sex Offender Registry.
Dillon allegedly set up a web site entitled "Piano Dreams Studio," advertising piano lessons for ages 4 and up, then failed to register it. Virginia law requires a registered sex offender to notify authorities within 30 minutes of any change to the Internet communication used by the offender.
Reaction from neighbors is mixed.
"I don't think he should be allowed to have contact with children if he's been convicted of having the pornography," said Joanne Colton.
Because Dillon has never been charged or even accused of inappropriate contact with children, he isn't breaking any laws by teaching them. He was convicted in 1998 on a federal charge of possession of child pornography without intent to distribute.
"If he wants to give piano lessons to kids in his home, that's fine, but he needs supervision, and he's allowed to come this far without ever having being charged," said Thomas Beeson, another neighbor. "It's not a problem with him, it's a problem with the system."
Anyone with additional information is asked to contact Crime Solvers by phone at 1-866-411-TIPS/8477, e-mail at www.fairfaxcrimesolvers.org or text "TIP187" plus your message to CRIMES/274637 or call Fairfax County Police at 703-691-2131.