King County prosecutors have filed two additional charges of attempted second-degree rape against Danford Grant, a Seattle attorney who now faces nine felony counts in connection with alleged attacks on Asian massage therapists.

Newly filed court documents responding to a defense motion to have the charges against Grant dismissed also reveal new allegations about the case: Grant searched hundreds, if not thousands, of ads on Craigslist and Backpage.com for Asian massage therapists, conducted online searches for “rape scenes,” and told at least two of his alleged victims that his wife and children were killed in a car crash.

He also told his last alleged victim — whom he is accused of raping twice — that he would come back and find her, “a promise he made good on” just before his arrest in September 2012, the documents say.

His alleged victims also told police Grant started out as “friendly” before turning mean and violent, the documents say.

Earlier this month, a judge agreed to allow prosecutors to amend the charges against Grant, adding two more counts of attempted rape to “more accurately reflect the defendant’s conduct,” according to court records.

The two incidents, both in 2011, involve alleged victims Grant is accused of later raping in 2012, according to court records. Both attempted rapes were previously detailed by detectives in search-warrant affidavits filed with the court in early 2013.

In addition to the new charges, Grant is charged with four counts of first-degree rape involving alleged attacks on massage therapists in Bellevue, Shoreline and Seattle between June and September 2012, according to charging documents. He also is charged with second-degree rape, attempted second-degree rape and first-degree burglary.

One of Grant’s alleged victims is Thai; the other four are Chinese, court records show.

The 49-year-old father of three posted $1 million bail and has been on electronic home detention since November 2012.

Grant, who is to stand trial next month, is claiming as his defense that he engaged in consensual, paid sex with the women, according to court records.

The defense motion to dismiss — which was filed in March and seems to suggest that all the alleged victims are prostitutes — argues that police failed to preserve secret-video footage that could have cleared Grant. In a related motion, the defense also is seeking to suppress evidence seized by Seattle and Bellevue police from Grant’s home, office, computers and car, arguing the search warrants filed in the case weren’t specific enough.

In the state’s response to the motion to dismiss, King County Senior Deputy Prosecutors Val Richey and Corrin Bohn wrote that there’s no reason to believe the secret footage would have cleared Grant and that there was no bad faith on the part of police.

They also questioned why the women — who independently provided “remarkably similar stories of his violent rapes” — would call police if they were “willingly providing consensual sex” with Grant, according to court documents.

Richey and Bohn argue that the defense “is incorrect on all accounts” and the search warrants in the case are “set forth with appropriate particularity.”

It is expected that King County Superior Court Judge Mary Yu will hear arguments on the motions next week.

Information from Seattle Times archives is included in this report.

Sara Jean Green: 206-515-5654