SOUTH JORDAN — One man was critically injured Saturday due to an explosion inside a home where federal agents found approximately 20 pounds of highly explosive materials and partially made bombs over the summer.
Emergency crews were called to 3371 W. Snow Moon Place about 4 p.m. Saturday on a report of an explosion and possible fire.
“The first arriving firefighters located an adult male in critical condition with lower leg injuries,” South Jordan fire said in a prepared statement.
The man, whose name has not been released, was taken by medical helicopter to a local hospital.
No fire was found. But due to the home’s history, South Jordan police, agents from the FBI and Alcohol, Tobacco, Firearms and Explosives, as well as bomb squads from West Valley City and the Unified Fire Authority were called to the scene.
The home belongs to 42-year-old Ryan Lynn McManigal, who was charged in July with two counts of attempted aggravated murder and three counts of use of a weapon of mass destruction, after investigators found highly explosive materials inside his house, and McManigal allegedly fired numerous rounds at an armored vehicle that police used to approach his home to arrest him.
Inside the house, authorities found about 20 pounds of triacetone triperoxide, or TATP, an extremely explosive substance sometimes referred to as “Mother of Satan.” It was reportedly used in terrorist attacks in Paris in 2015, Brussels in 2016, and Manchester in 2017. Methyl ethyl ketone peroxide, or MEKP, a similar highly explosive chemical, was also found in the house.
McManigal remained in the Salt Lake County Jail on Saturday at the time of the explosion, according to jail records.
After McManigal’s arrest, about 600 residents were forced to evacuate their homes as officials cleared the explosive materials from his house, or detonated some of the materials on site.
On Saturday, two homes were briefly evacuated “as a precaution until bomb squad personnel were able to confirm there was no risk to the community,” according to South Jordan fire.
A neighbor said the house had been boarded up since July, but a man showed up about four days earlier to do work on it. The neighbor believed the man may be related to McManigal.
South Jordan Deputy Fire Chief Ryan Lessner said the home has been condemned since the original incident in July and no one was supposed to be in it. Bomb squad technicians went through the entire house late into the evening on Saturday, he said, but did not find any other threats.
The home remained condemned Sunday and the incident under investigation as officials try to learn more about the man who was injured.