Cory Ryther, husband of murder victim Joan Ryther holds up a picture of his wife to the media. Pic Darren England Source: The Courier-Mail THE husband of murdered mum-to-be Joan Ryther has made an emotional appeal for help to solve the brutal crime. Cory Ryther broke down as he joined detectives at Logan police station today to urge anyone with information to come forward. My wife was eight weeks pregnant at the time she was taken. I'd like to urge the public that anything they knew, anything...to come forward to get this guy. Her family, my family, we want justice for my Joan. Police say Ms Ryther suffered a blow to the head and was sexually assaulted. Mr Ryther brought an ultrasound image of his unborn child to the station along with baby items the couple had already purchased. His wife had set up a Facebook page for their child, a girl, and had already picked a name. Ms Ryther is suspected to have been snatched off the street while walking to her work at McDonald's at Logan Central on Tuesday May 21. A local resident found her partially-clothed body at 7am Wednesday in a yard on Leichhardt St, just 900m from her Mayes Ave home. Her husband, a Canadian-born chef, was at work at the time his wife was due to make her way to McDonalds. Mr Ryther said his wife worked eight hours a day at McDonald's and then studied for eight hours a day. Her father was murdered before her birth and her brother had pledged to always look after her. Nothing would stop her from doing what she wanted to do. In turn she promised her nephews she would put them through school. Detective Superintendent David Hutchinson said police had this morning located a man who went to a Mayes Ave home and asked to be let inside on the night Ms Ryther was murdered. The man, who had been described as wearing a yellow top on the night, spoke to police at Logan station but has since left, Supt Hutchinson said. Inquiries were continuing into the man, he said. Mr Ryther and Joan were married October 21, 2011, in the Philippines. Pic: Darren England "What was taken from me was not just my wife but was also my child," Mr Ryther said. Mr Ryther said he wanted to take his wife home to the Philippines when the body was released. He said he had hardly eaten or slept since it started. Joan was a very determined woman. She was the only one out of her brothers and sisters who finished their education. Her father was murdered when she was in the womb before she was born so she never got the opportunity to know her father but her brother swore he would take care of his brothers and sisters and that's what he did. She was the youngest out of eight children. She was the only one who finished her education so he allowed her to come to Australia to continue her education because she wanted to have a better life. She came here alone. She worked eight hours a day at McDonald's then she went to school for eight hours. She did that for three years. They met at Stones Corner when he was getting a coffee and she was on lunch break from studying hairdressing in February 2011. We had both come out of disastrous relationships. A Logan woman has told Ten News exclusively she believes she was the last person to see murder victim Joan Canino Ryther alive I knew from the moment I saw her that I loved her. His wife had named their unborn child Camille Gayle Ryther Ms Ryther went home to the Philippines in August 2011 to organise their wedding and get medical treatment. They waited 13 months for her visa because it was suspected she had tuberculosis but she was never sick. His wife suspected there was a ploy by doctors to get more money from them. On January 31, 2012, he phoned the Australian embassy in Manila and was told the visa would still be two to four weeks away. The next morning her visa was there. I just happened to be checking her emails by chance. From when I found out she had her visa, about 30 seconds later I phoned her in the Philippines and by that evening...I organised all her flight arrangements, everything, and she was home 8.30pm February 6. Mr Ryther invited media at the press conference to ask questions. He was about to detail how the events unfolded but police were concerned operational material could be disclosed. "I urge people to come forward," Mr Ryther said before being thanked by police and escorted away. Responding to questions, Supt Hutchinson said police had looked at known sex offenders in the area "as part of the normal investigation." Asked if he believed there was planning behind the attack or if it was opportunistic, he said it would be "speculation" to answer. He said about 40 officers were still working on the case. "We still have a large number of police, investigators, intelligence officers and forensic officers still attached to the case," Supt Hutchinson said. We have received a large amount of information from the public and we would encourage the public to continue providing information. There are still a number of appeals we would like to make in order to fill some of the gaps in the investigation so far. We would like any person who was actually travelling Mayes Ave and or Leichhardt St on that Tuesday night, between 7.30pm and 9pm to come forward and contact police, whether they saw anything or not. Similarly any person who use saw anybody travelling those streets between that time. So they may have been in houses and just seen people travelling along those streets. We would like them to come forward. We are still keen on hearing from anybody who may have been in the vicinity of Mayes Park again on that evening Tuesday the 21st of May from 7.30pm onwards. The Courier-Mail previously reported a man went to a home in Mayes Ave on the night of the murder and asked to be let inside. We have identified that person today. He's not a suspect, he's currently being spoken to as we speak now. He's been located today. He was located this morning and he attended the police station. He concluded: "Obviously we have a large task force of investigators out there at the moment...and we are coming after him, it's as simple as that, it's just a matter of time." Earlier, The Courier-Mail reported that the husband of murdered Logan Central woman Joan Canino Ryther says he will never get over the loss of the woman he loved.