Accusations of criminal wrongdoing have snowballed against a Hammond man arrested last week in connection with a sex case that began on the Internet, the Hammond Police Department reported Wednesday.

Detectives have added counts of rape, extortion for sex, harassing phone calls and cyberstalking against Adam David Kolb, 26, of Hammond, police spokesman Lt. Vincent Giannobile said Wednesday.

Kolb’s initial arrest has prompted more than 75 phone calls to police, some of which include additional allegations against Kolb, Giannobile said.

One case, which is still under investigation, involves a juvenile, the police spokesman said. Kolb has not been booked in connection with that case.

However, detectives have added a count of forcible rape against Kolb involving his first accuser, who is a woman in her 20s, and added two counts of extortion for sex against him in cases involving other women, Giannobile said Wednesday.

He said Kolb has threatened to reveal things about women if they did not have sex with him.

Kolb has gotten women to send him pictures via the Internet, and an examination of his computer shows numerous pictures of nude women and children, Giannobile said, adding that police also confiscated Kolb’s phone and thumb drives.

In addition to Facebook, Kolb has used YouTube and an online card game called “Yu-Gi-Oh!” to find women, Giannobile said.

“He was pretty creative,” Giannobile said.

Kolb also obtained women’s phone numbers through his job delivering pizza, and used those numbers to set up dates with some of the women, the police spokesman said.

The pizza job is how he found his youngest alleged victim, a 14-year-old girl, according to a Hammond police press release.

Kolb came to investigators’ attention late last month when a woman told police he had forced her to have sex with him, said Giannobile.

Kolb allegedly contacted the victim on Facebook pretending to be a woman, Giannobile said.

Later, acting as a man, Kolb allegedly contacted the victim and arranged a meeting by telling her he was a friend of the female persona he had used to contact the victim on Facebook, the police spokesman said.

Most of the women who have complained to police about Kolb are under the age of 30, Giannobile said.

Kolb has been booked in Tangipahoa Parish with two counts of extortion for sex, one count of forcible rape, one count of cyberstalking, and two counts of harassing calls, according to the release which also said Jefferson Parish and St. Tammany Parish have warrants for Kolb’s arrest.

The release said investigation of additional allegations continues.

Giannobile said evidence indicates Kolb has contacted women in the Hammond, Ponchatoula and Independence areas.

Kolb has lived in other areas, including Kenner, Giannobile said.

Hammond police are asking anyone with information about the matter to contact Detective Edwin Bergeron at (985) 277-5741.