Edward Crandall aka Edwin Todd is a con artist who conspired to have his wife killed so he could inherit all her money.
On SVU
Edward Crandall aka Edwin Todd is a man who found his wife raped and beaten on the kitchen floor. The SVU detectives asked Edward (or Edwin, because he didn't reveal his name as Edward Crandall at the time) and he said he couldn't find his wife's rolex watch and said he doesn't remember her wearing it when she was found.
Captain Donald Cragen and Finn question the maid working at the Todd residence and she tells them that she doesn't like Mr. Todd and that he made her move out of the house when he married Jessica. She tells them her boyfriend took her keys by mistake and they suspect him. They go to talk to the boyfriend and he tells them about a fight between Mr. and Mrs. Todd. The DNA from Mrs Todd matches another unsolved rape, so Olivia and Elliot talk to the victim.
A few minutes into the episode they suspect someone named Mr. Ryan after Elliot finds the stolen watch in his toolbox. After the evidence is suppressed in the court because they searched Ryan's property without a warrant, the DNA comes back and doesn't match Ryan and police suspect someone is trying to frame him. They get Mr Ryan's permission to search the toolbox for prints and find Mr Todd's prints on the diamond bracelet. They talk to Mr. Todd and he lies about touching in the locksmith's toolbox and about where the locksmith has been in the house.
Olivia and Elliot find out that Mr. Todd is a 72 year old man that hasn't been to New York in twenty years and never met Jessica. They find out that the fake Mr. Todd is scamming Jessica for her money and didn't run away yet because he didn't have all the money he needed. They suspect that Mrs. Johansen is involved in the scam too. Elliot and Olivia tell everything to Jessica but she doesn't believe them, they ask her if he has access to her money and she tells them only when she dies.
The police find a common telephone number in fake Mr. Todd's and Mrs. Johansen's phone records and go to the address, the neighbors recognize them from the pictures and say they are Mr. and Mrs. Brown. Captain Cragen gets a warrant and they search the apartment. They find a used boarding pass to Winnipeg under the couch cushions. They talk to the Canadian police and find out that fake Mr. Todd visited Canada a few times lately. Captain Cragen tells Elliot and Olivia to send the prints found in the apartment to the Canadian police to see what they can find out.
Fin points out that they still don't know whose DNA it is in both victims, since it doesn't match Mr. Ryan's or fake Mr. Todd's. Olivia says maybe Mrs. Johansen used her husband's DNA, since he would never be a suspect, police would never take his DNA to compare with and the case would never be solved. They tell all to Mr. Johansen and ask for him to give a sample of his DNA for comparison. The lab results confirm is Mr. Johansen's DNA in both women.
Later in the episode it is revealed that Edwin Todd's real name is Edward Crandall and he gets arrested for fraud.
Olivia and Elliot try to convince Jessica that her husband planned it all to scam her and show her all the papers from the Canadian police but she isn't convinced. She says he confessed everything to her the night before and asked for forgiveness, and she forgave him. She says her husband's lawyer told her she could never testify about what he told her because she is his wife and conversation between spouses is privileged. Mr. Johansen too heard his wife confess to him and later got the call from her lawyer telling him he could not testify.
The police do some research and find out that Ed and Denise got married in Mexico before getting married to Jessica and Mr. Johansen, so their marriage to them is void and they both can testify against Ed and Denise. Ed tries to charm Jessica, but she doesn't fall for that anymore.