BELLE PLAINE, Iowa (KCRG-TV9) -- Investigators say a woman who died in Belle Plaine may have had information on the murders of the Black Hawk County cousins.
Court records show Teresa Gerleman, 35, put herself in front of an on-coming train and pulled her 8-year-old son in front the train when he tried to leave the tracks. This happened in Belle Plaine on May 4, around 5 a.m. The state ruled it a murder-suicide.
Court documents show she told community support specialists at Genesis Development in Belle Plaine that she had a 6-page letter in a box in her house written by the men who killed Lyric Cook and Elizabeth Collins. Gerleman said she used to hang around with these men and they had admitted to the crime.
Investigators executed a search warrant, taking several items from Gerleman's home including a handwritten note.
In July 2012 Lyric Cook and Elizabeth Collins disappeared while riding their bikes in Evansdale. Hunters found their bodies in the Seven Bridges Wildlife Area in December of that year. No one has been arrested for their murders.
Gerleman also told the support specialists her medications make her "feel like standing in front of a train" about three months ago. During authorities investigation, they also found that she didn't have much for immediate family. Both her parents were deceased and she had no siblings.
Other items found while executing the search warrant included four cell phones, two notebooks and two sealed envelopes that said "To Jeremiah from Henry" and "To Phaedra from Henry." Gerleman's son was named Henry.