LAPORTE -- Twenty-four-year-old Brent Krueger, in admitting Friday to the shotgun slaying of a man in LaPorte, said heroin was behind the killing.

Krueger agreed to a 45-year prison sentence for felony murder and an extra five years in prison for Class C felony burglary. Had he gone to trial and been found guilty, his sentence could have been up to 73 years.

LaPorte County Deputy Prosecutor Chris Fronk speculated Krueger's admission was because of rock-solid evidence against him.

Krueger admitted before LaPorte Circuit Court Judge Tom Alevizos that he approached James Greve with a shotgun to rob him of heroin and money. Krueger said he threatened Greve, then, after racking the gun, the firearm went off, leaving the 46-year-old Greve dead outside the victim's apartment.

The shooting occurred the night before Halloween, and the gunman was wearing a mask like that worn by a character in the movie "Scream," according to court records.

Alevizos took the plea under advisement and, if he accepts the terms, scheduled sentencing for Feb. 17.