Less than one day after the Monroe County Sheriff's Office announced an arrest in the murder of Chelsea Bruck, 7 Action News spoke to two people familiar with the suspect.
UPDATE: Suspect confessed to involvement in Chelsea Bruck's 2014 death, his girlfriend says
The suspect's roommate, Deanna Boring, tells 7 Action News she was home when police came to arrest the man. They searched the home and found items belonging to Bruck in a backpack.
"I'm thankful me and her are all right," Boring said referring to herself and his girlfriend, Kelly Richter. "We're not the next ones that it happened to."
Bruck disappeared from a Halloween party in Frenchtown Township on Oct. 25, 2014. The 22-year-old's body were found in a wooded area in Ash Township nearly a year later on April 24, 2015.
Related: VIDEO TIMELINE: What's happened in the 6 months after Chelsea Bruck disappeared
Richter says she has spoken to him since he was arrested. When she asked him if it was true, if he killed Bruck, but would not answer the question. He also said underwear found in his backpack belonged to an ex-girlfriend.
"I've been non-stop crying, I can't eat, I can't sleep," Richter said. "I don't even know what to think anymore."
Both Richter and Boring do believe he was arrested in Bruck's murder.
"It's just so scary because you know, we were left with him and who knew what could happen," Richter said. "I was with him every night for the last month."
Over 600 people were at the Halloween party when Bruck disappeared, and last year, police said they had interviewed nearly 200 people and followed up on more than 900 tips regarding the case.
According to Monroe County Sheriff Dale Malone, the sheriff's office was given information from the Michigan State Police Crime Lab that connected the suspect to the investigation. After doing surveillance on his home, he was arrested just before 3 p.m. on Friday.
Malone said the suspect revealed information "that only the killer would know," during an interview with deputies on Friday afternoon. Information he gave to deputies was not given to the public, according to Malone.