KTVU Ten OClock News May 7, 2011
a target, john? >> reporter: many have these non-locking mailboxes. there's a small theft leading residents on guard. >> people who made the theft are able to get here and wash the check and cash it. >> reporter: he said last week a thief stole an outgoing check from his mailbox. >> changing the amount from $910. that's not too large, not too small. >> reporter: he admits a telltale red flag. >> if the flags are up, that's a red flag. >> i physically dropped it into my land lord's mailbox. >> we met this man in the same neighborhood who fell victim to a thief and conquered last year....