Steve Weber is suspected of fatally shooting his ex-wife, 47-year-old Francesca Weber, at her Fitchburg apartment last Saturday.

Dozens of federal and local agents, some wearing camouflage, set up a perimeter around a Madison park Tuesday after a murder suspect's vehicle was discovered nearby. Police say a pickup truck believed to be owned by Steve Weber was found Tuesday morning near the wooded Hoyt Park. Staff, children and others at the Madison School & Community Recreation building in Hoyt School near the park were ordered to stay inside with doors locked. Weber is suspected of fatally shooting his ex-wife, 47-year-old Francesca Weber, at her Fitchburg apartment last Saturday.