Explosion Suspect Accused in Plot to Kill Witness

Indianapolis man arrested in gas explosion was charged with trying to have a witness murdered.
2:13 | 03/29/13

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Transcript for Explosion Suspect Accused in Plot to Kill Witness
Now we turn to a new twist in the case of that deadly gas explosion that all but leveled an indianapolis neighborhood. The man arrested for the crime is now also accused of trying to have a witness murdered. Abc's gio benitez has the details. Reporter: The man thought he would be released from jail if he had the witness killed but now abc news has learned that plan, oh, it's backfired. This morning as mystery surrounds this fiery blast in indianapolis, prosecutors say the man facing trial for the explosion is at the center of a murder for hire plot now heating up the case. Mr. Leonard stated that he wished to arrange for the death of a witness in the explosion case. Reporter: Leonard, his girlfriend and brother, are all facing murder and arson charges after the girlfriend's home exploded in november. Killing these next-door neighbors, a schoolteacher and her husband. Investigators believed it was all to collect insurance money. This is a collect call from an inmate at the marion county jail. Reporter: But jailhouse calls are monitored and recorded. This sign above the phone even warned leonard. Even though investigators say he used those calls to plan the murder of a witness only identified as md. It is further alleged that mr. Leonard drew a map for directions to that target's house and signed an agreement to pay $15,000 upon the death of md. Reporter: What leonard didn't know was an undercover agent was in on the plot. ON MARCH 13th, MR. LEONARD Placed a call to the undercover agent in which mr. Leonard again confirmed his intent to have md killed. Reporter: Prosecutors say leonard offered the hit man a $5,000 bonus if he made the witness' killing look like a suicide. Leonard also allegedly wanted the witness to change the story before death. And this isn't leonard's only legal battle. It turns out several women have sued him because they claim he set up online dating profiles, borrowed thousands of dollars from them when they met and then never paid them back. George? This guy is in deep trouble. Thanks very much.

This transcript has been automatically generated and may not be 100% accurate.

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