Search for Travis Decker; Pewaukee native believed to be spotted

Travis Decker
PEWAUKEE, Wis. - Law enforcement agencies believe they are on the trail of a Pewaukee native suspected of killing his three children.
What we know:
Travis Decker is accused of killing his three young daughters in Washington State. Authorities in Washington confirmed three girls, ages 5, 8 and 9, were found dead on Monday, June 2.
The Chelan County Sheriff's Office received a tip from a hiking party, the sheriff’s office announced on Tuesday, June 10. The hikers reported seeing a lone individual in the Enchantments area who appeared "ill-prepared for the conditions" and appeared to be "avoiding others."
Tracking teams responded and found a lone, off-trail hiker from a helicopter near Colchuck Lake. The individual reportedly ran from sight as the helicopter passed. Additional resources were called to the area, and K9 units were deployed after teams picked up a trail. The subject was tracked to the Ingalls Creek Trailhead area on Highway 97.
What you can do:
Individuals in the area with cabins or residences in the Blewett Pass/Highway 97 area are urged to report suspicious activity, lock their doors and vehicles and look out for neighbors' property. Those with cameras are asked to check them or submit a tip to the U.S. Marshals tip line with the camera's location for law enforcement review.
If Decker is sighted, you are asked to call 911 immediately and not attempt to contact or approach him. Deputies also recently announced a $20,000 cash reward for any information leading to Decker's arrest.
Decker lived out of his truck. The vehicle was found, but there is no sign of him.
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Anyone with information is urged to contact the nearest U.S. Marshals office, the U.S. Marshals Service Communications Center at 1-800-336-0102, or USMS Tips.
Local perspective:
Decker graduated from Pewaukee High School. He was a wrestler while attending the school. His brother told FOX6 News Decker graduated in 2010.

Travis Decker
Investigators say Decker kidnapped his three daughters 5-year-old Olivia, 8-year-old Evenlyn and 9-year-old Paityn, who were found dead at the Rock Island Campground outside of Leavenworth, Washington. Investigators say the preliminary cause of death for each was asphyxiation.
A GoFundMe to help the children's mother, Whitney, cover expenses and legal costs has surpassed $1 million.
The Source: Information in this report came from the Chelan County Sheriff's Office, FOX13 and prior FOX6 coverage.