BY NOLAN CLAY Oklahoman Published: December 15, 2010 at 4:30 pm Mark Anthony Richardson Jr., 21, twice this year fooled baby sitters into watching him at their homes in Oklahoma City, police reported. The baby sitters told police he would get sexually aroused when they cleaned him while changing his diapers, police said. Police said he grabbed the breast of one baby sitterâs 18-year-old daughter during an overnight stay in September. Her mother told her âto go back to sleep because he did not know what he was doing,â police reported. Richardson was charged in October with a felony count of sexual battery and seven misdemeanor counts of outraging public decency. A judge this week scheduled his preliminary hearing for Jan. 5. The sexual battery count covers the alleged groping of the 18-year-old womanâs breast. The outraging public decency counts cover seven times he allegedly caused a baby sitter to change his diapers. Prosecutors allege four times were on April 8 and three times were over three weeks in September. Richardson â who is 4 feet 9 inches tall â is being held in the Oklahoma County jail. Prosecutors allege Richardson found his victims from baby-sitting ads placed online at Craigslist. âThis bizarre crime is yet another example of the dangers of letting individuals who we meet online into our homes,â Oklahoma County Assistant District Attorney Jimmy Harmon said Friday. Richardson was caught when his last baby sitter became suspicious after he stayed repeatedly at her familyâs home in September. The woman told police her 18-year-old daughter had placed the online ad. She said a man â using the name âDavidâ â called about watching his autistic son, âAlex.â Police reported the caller described the son as 19 and said he still wears diapers, drinks formula from a bottle and uses a pacifier. http://newsok.com/man-wore-diapers-to-con-baby-sitters-police-say/article/3522850