sian welch and wendy ingraham are friends and competitors.professional triathletes and among the year's strongest contenders. >> i put a huge effort into the event for '97. i think on paper i can win this. >> for the first time i really believed i could win the hawaii ironman. >> i just saw a glow in her eyes. she was in probably the best head space that i had seen her in years. >> the day begins in the water where wendy promptly sets a new women's swim record. she expects to lose her lead during the bike ride, but it doesn't happen. >> and i was just like, what's wrong? am i here, is this the right day? are they still racing? what happened, did they crash. all these thoughts were going through my mind because no one had caught me yet. i was on cloud nine and i was just like, i think i might actually do it this time. i might actually win the iron man. >> the race is shaping up differently for sian. >> the day of the race, i knew that something was wrong with my body. about 30 miles into my bike i just was not able to keep anything down. it wa

you are looking at a photo of twenty-seven yard sian from associate media, this, is him according to his brother-in-law. he was at a holiday party here with his coworkers, then left, perhaps after an argument before returning with his wife or partner, and they have a young daughter, she is the mystery woman. we know nothing about her. both were killed in a shootout with twenty one police officers after police investigated the home where they believe the two lived. they saw an suv speed off. both had two assault rifles and two high powered handguns. what was the motive? workplace violence? terrorism? we don't know. police are not ruling anything in or out. going through the house overnight, still an active crime scene, coworkers tell the "l.a. times" there was no sign he was fanatical in any way, and his brother-in-law was at a loss for words. >> i just cannot express how sad i am for what happened today. i mean, i -- sympathies to those who lost their live, and very sad that people lost their life, and there's victims out there. i wish speedy recovery to them, and, again, i'm in shoc