AURORA, Colo. (CBS4) — Investigators returned to an Aurora home where several pipe bombs and bomb-making materials were found following a fire in a basement.
Police say they are going back to the home Wednesday because they still have a lot of questions after they found pipe bombs, chemicals and other explosives.
This is the second day bomb squads with Arapahoe County and Aurora Police searched the home on South Bahama Street. They are cataloging all the evidence they have collected since Tuesday morning.
Michael Grover is facing charges of possession of explosives after he was arrested on Tuesday. He appeared in court Wednesday morning.
"Knowing it was a fire it was God's grace that the police came to investigate it and found out there were more bombs. I think it was God's will and grace," said neighbor Robin Austin.
Grover, 55, appeared before a judge with his public defender. The judge set his bond at $1 million. That is four times the amount set on Tuesday, $250,000.
Grover is scheduled to return to court on Monday.
According to the arrest affidavit, Grover and his teenage son tried to put out the fire in the basement which was sending up plumes of billowing black smoke.
There was also potassium nitrate on the kitchen table; the material can be used in explosives.
"I was kind of in shock because if there were any kind of major explosions this would really affect us," said neighbor Luanne Fleming.
The pipe bombs found inside the home contained black powder with electrical caps as the fuse. One end was welded and the other was held on by adhesive.
The document states the devices were not powered by any battery or electrical source so they were deemed safe to remove.
According to the document, Grover told police he was going to detonate the devices this weekend but it does not indicate where.
Four homes in the neighborhood were evacuated for several hours on Tuesday during the initial search. Everyone was allowed to return home Tuesday evening.
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