In Britain, tweeting messages considered menacing can lead to prosecution, and now there are reports of an arrest in the Twitter insult against British diver Tom Daley.

Dorset Police tweeted Tuesday morning: "Regarding tweets to (at) TomDaley1994 — 17-year-old man arrested this morning at a guest house in the Weymouth area."

Daley's father died of brain cancer a year ago and the 18-year-old Olympian had hoped win a medal "for myself and my dad." But he finished finishing fourth, out of medal contention, in the 10-meter synchronized platform with teammate Pete Waterfield.

Afterward, Twitter user (at)Rileyy69 sent him this message: "You let your dad down i hope you know that."

— Cassandra Vinograd — Twitter: http://twitter.com/CassVinograd

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