A bizarre killing spree with a knife took in LaPlace on Sunday that resulted in the deaths of two individuals and serious injuries to the suspect’s sister. St John the Baptist Parish Sheriff Mike Trege says 23- year old Oscar Urisa attacked and killed his 31-year old girlfriend and her 15-year old sister, and also stabbed his 17-year old sister and 15-year old brother with a machete.
“We’re conducting interviews with him today to see if we can then clarify a motive or what exactly transpired in his mind that led to him taking the lives of these two women and attacking his sister,” said Trege.
Trege says the horrific attacks began at a residence on Fairway Drive when Urias’s girlfriend, Elizabeth Tornbene, followed the suspect into his bedroom, then Urias immerged wearing a mask and yielding two knives into the living room.
“There was no hesitation what he was doing, his mind was set and he was set on killing people,” says Trege.
The suspect was apprehended after allegedly stabbing and killing the 15-year old sister of his girlfriend in a garage on North Sugar Ridge.
Trege says Urias’s 17-year old sister was also injured in the attack and this is the most vicious crime he’s ever investigated.
“We have two deceased and one that’s still in serious condition. You know I’ve seen tragedy before and this one probably is the worst I’ve had to witness so far in my 32-years,” says Trege.
Urias is charged with two counts of first-degree murder and two counts of attempted murder.
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