The ex-boyfriend of Utah children's author Kouri Richins testified Wednesday in her murder trial, providing details about their relationship in the months before her husband's death. Robert Josh Grossman, described as a handyman, took the stand as prosecutors build their case against Richins.

Richins is accused of killing her husband Eric by giving him a fatal dose of fentanyl. She has denied the allegations against her. Following her husband's death, she authored a children's book about grief.

During Wednesday's testimony, Grossman became emotional as text messages between him and Richins were presented in court. The messages revealed details of their relationship and communications during the time period in question.

According to testimony, Richins had asked Grossman whether he had ever killed anyone in conversations that occurred days after her husband's alleged poisoning. The questioning was part of the prosecution's effort to establish the nature of their relationship and communications.

The trial continues as prosecutors present evidence in the case against Richins. She faces charges related to her husband's death, which allegedly occurred through fentanyl poisoning administered in a drink.